Professor PHILIP SHIPWAY's Outputs (40)

Effect of humidity and oxygen on friction, wear and durability of a polymer-bonded molybdenum disulfide (MoS2)-based dry film lubricant (DFL) coating system in large amplitude fretting (2024)
Journal Article
Laolu-Balogun, E., Owen, S., Read, S., Shipway, P., & Voisey, K. (2024). Effect of humidity and oxygen on friction, wear and durability of a polymer-bonded molybdenum disulfide (MoS2)-based dry film lubricant (DFL) coating system in large amplitude fretting. Wear, 552-553, Article 205426. https://doi.org/10.1016/j.wear.2024.205426

Investigations into effects of humidity and oxygen on a polymer-bonded MoS2-based dry film lubricant (DFL) coating, on grit-blasted Ti-6Al-4V using a cylinder-on-flat configuration, are reported. Sustained low friction and low wear occurred in both l... Read More about Effect of humidity and oxygen on friction, wear and durability of a polymer-bonded molybdenum disulfide (MoS2)-based dry film lubricant (DFL) coating system in large amplitude fretting.

The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact (2023)
Journal Article
Carrington, M., Daure, J., Utada, S., Ratia-Hanby, V., Shipway, P., Stewart, D., & McCartney, D. (2024). The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact. Materials Science and Engineering: A, 892, Article 146023. https://doi.org/10.1016/j.msea.2023.146023

Multiphase Fe-based hardfacing alloys, for example Tristelle 5183 Fe-21%Cr-10%Ni-7.5%Nb-5%Si-2%C in wt.%, are extensively used for tribological applications, including valves, bearings and drive mechanisms, where two surfaces are unavoidably subjecte... Read More about The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact.

Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications (2023)
Journal Article
Bastola, A., McCarron, R., Shipway, P., Stewart, D., & Dini, D. (2024). Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications. Wear, 540–541, Article 205186. https://doi.org/10.1016/j.wear.2023.205186

The excellent wear and corrosion resistance of Co-based alloys make them desirable for tribological applications in the nuclear industry. However, neutron activation of the Co-based alloys leads to significant occupational radiation doses. An alterna... Read More about Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications.

Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited (2023)
Journal Article
Laolu-Balogun, E., Owen, S., Booth, T., Pattinson, G., Shipway, P., & Voisey, K. (2023). Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited. Tribology International, 188, Article 108863. https://doi.org/10.1016/j.triboint.2023.108863

The superior fretting performance of polymer-bonded MoS2-based dry film lubricant (DFL) coating on a plasma-sprayed Cu-Ni-In under-layer is well known. The Cu-Ni-In under-layer changes both the material and the topography of the sur... Read More about Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited.

Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance (2023)
Journal Article
Daure, J. L., Kóti, D., Carrington, M. J., McCartney, D. G., Stewart, D. A., & Shipway, P. H. (2023). Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance. Wear, 524-525, Article 204804. https://doi.org/10.1016/j.wear.2023.204804

Austenitic stainless steels have attractive properties for use in corrosive environments, but their use in components where motion under load is experienced (such as valves) is limited by their poor galling behaviour. Whilst stainless steels with imp... Read More about Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance.

Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates (2023)
Journal Article
Zhu, T., Bennett, C. J., & Shipway, P. H. (2023). Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates. Wear, 523, Article 204818. https://doi.org/10.1016/j.wear.2023.204818

In contrast to the well-established understanding of sliding wear, recent work has clearly demonstrated that the instantaneous wear rate in fretting of metals is dependent upon the contact size due to the fact that transport of species in and out of... Read More about Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates.

Corrigendum to ‘Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection’ (Wear (2021) 486–487, (S004316482100452X), (10.1016/j.wear.2021.204066)) (2021)
Journal Article
Shipway, P. H., Kirk, A. M., Bennett, C. J., & Zhu, T. (2022). Corrigendum to ‘Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection’ (Wear (2021) 486–487, (S004316482100452X), (10.1016/j.wear.2021.204066)). Wear, 488-489, Article 204161. https://doi.org/10.1016/j.wear.2021.204161

Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection (2021)
Journal Article
Shipway, P. H., Kirk, A. M., Bennett, C. J., & Zhu, T. (2021). Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection. Wear, 486-487, Article 204066. https://doi.org/10.1016/j.wear.2021.204066

A new framework which describes the role of three key processes in fretting wear of metals is proposed, with these three processes being: (i) oxygen transport into the contact; (ii) formation of oxide-based wear debris in the contact and (iii) ejecti... Read More about Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection.

Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage (2021)
Journal Article
Kirk, A. M., Sun, W., Bennett, C. J., & Shipway, P. H. (2021). Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage. Wear, 482-483, Article 203981. https://doi.org/10.1016/j.wear.2021.203981

In previous work, fretting frequency has been observed to have a significant impact not only on wear rates, but also on the nature of fretting debris and the development of subsurface damage; however, while the “frequency effect” has been shown in so... Read More about Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage.

Time-dependence and exposure-dependence of material removal rates in fretting (2021)
Journal Article
Shipway, P. H. (2021). Time-dependence and exposure-dependence of material removal rates in fretting. Wear, 477, Article 203826. https://doi.org/10.1016/j.wear.2021.203826

Fretting generally results in either material removal or fatigue, or a combination of both. Although the term is rarely used now, in the early literature addressing this subject, fretting that resulted in material removal was sometimes termed “fretti... Read More about Time-dependence and exposure-dependence of material removal rates in fretting.

Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries (2021)
Journal Article
Zhu, T., & Shipway, P. H. (2021). Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries. Wear, 474-475, Article 203710. https://doi.org/10.1016/j.wear.2021.203710

It has been long understood that fretting differs from sliding wear in that the relative displacement between the bodies is generally smaller than the size of the contact between them, with debris ejection from the contact thus playing an important r... Read More about Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries.

Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature (2021)
Journal Article
Daure, J. L., Carrington, M. J., McCartney, D. G., Stewart, D. A., & Shipway, P. H. (2021). Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature. Wear, 476, Article 203736. https://doi.org/10.1016/j.wear.2021.203736

© 2021 Elsevier B.V. Galling is a category of severe adhesive wear that is defined by surface damage arising between sliding solids, distinguished by macroscopic, usually localized, roughening and creation of protrusions above the original surface. T... Read More about Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature.

Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment (2021)
Journal Article
Carrington, M. J., Daure, J., Ratia-Hanby, V. L., Zhang, D., Shipway, P. H., Stewart, D. A., & McCartney, D. G. (2021). Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment. Tribology International, 158, Article 106899. https://doi.org/10.1016/j.triboint.2021.106899

© 2021 Elsevier Ltd Stellite 6 (Co-29.5%Cr-5%W-1.2%C in wt%) is traditionally used as a hardfacing material in the primary circuit of pressurised water reactors (PWRs) due to its good corrosion and wear resistance in water at up to 300 °C. In this st... Read More about Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment.

Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings (2019)
Journal Article
Venter, A. M., Luzin, V., Marais, D., Sacks, N., Ogunmuyiwa, E. N., & Shipway, P. H. (2020). Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings. International Journal of Refractory Metals and Hard Materials, 87, Article 105101. https://doi.org/10.1016/j.ijrmhm.2019.105101

© 2019 High-velocity-oxygen-fuel deposited WC-12wt%Co and WC-10wt%VC-12wt%Co hardmetal coatings are well anchored to the mild steel substrates, giving good mechanical integrity, as well as low porosity. The mechanical integrity has been investigated... Read More about Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings.

The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact (2019)
Journal Article
Zhu, T., Shipway, P., & Sun, W. (2019). The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact. Wear, 440-441, 203081. https://doi.org/10.1016/j.wear.2019.203081

The paper ‘The third-body approach: a mechanical view of wear’ by Maurice Godet (Wear, 100 (1984), pp 437–452) was perhaps the first to articulate clearly the key role of the rate of debris expulsion from a fretting contact in controlling the overall... Read More about The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact.

The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions (2019)
Journal Article
Karimi, G., Carrington, M., Thomas, J., Shipway, P., Stewart, D., & Hussain, T. (2019). The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions. Corrosion Science, 159, Article 108141. https://doi.org/10.1016/j.corsci.2019.108141

The corrosion behaviour of cast and HIPed Stellite 6 analogue materials in PWR-simulating conditions was investigated. The cast alloy exhibited localised corrosion at the boundary between the matrix and the M7C3 carbides, with this being attributed t... Read More about The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions.

Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion (2019)
Journal Article
Reddy, L., Sattari, M., Davis, C., Shipway, P., Halvarsson, M., & Hussain, T. (2019). Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion. Corrosion Science, 158, 1-10. https://doi.org/10.1016/j.corsci.2019.07.003

This study investigated the effects of HCl and KCl on a laser-clad FeCrAl coating at 450 °C in an in-situ ESEM followed by a furnace exposure. In all in-situ TEM cross-sections, three major phases were identified: an iron rich oxide, an iron-chromium... Read More about Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion.

The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel (2019)
Journal Article
Kirk, A. M., Shipway, P. H., Sun, W., & Bennett, C. J. (2019). The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel. Wear, 426-427(Part A), 694-703. https://doi.org/10.1016/j.wear.2018.12.035

It is well established that damage to the first bodies in fretting wear gives rise to a hard and brittle tribologically transformed structure (TTS) which can influence both wear and fatigue. While the existence and significance of TTS has been establ... Read More about The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel.

Debris development in fretting contacts: debris particles and debris beds (2019)
Journal Article
Kirk, A., Shipway, P., Sun, W., & Bennett, C. (2019). Debris development in fretting contacts: debris particles and debris beds. Tribology International, https://doi.org/10.1016/j.triboint.2019.01.051

In this study, the formation and destruction of compacted beds of oxidized debris particles are investigated. Fretting tests of steel specimens were conducted, employing a cylinder-on-flat geometry with displacement amplitude being varied. The debris... Read More about Debris development in fretting contacts: debris particles and debris beds.

A comparison of the galling wear behaviour of PVD Cr and electroplated hard Cr thin films (2018)
Journal Article
Daure, J., Carrington, M., Shipway, P., McCartney, D., & Stewart, D. (in press). A comparison of the galling wear behaviour of PVD Cr and electroplated hard Cr thin films. Surface and Coatings Technology, https://doi.org/10.1016/j.surfcoat.2018.06.070

Electroplated hard chromium (EPHC) is used in many industries as a wear and corrosion resistant coating. However, the long term viability of the electroplating process is at risk due to legislation regarding the toxic chemicals used. The physical vap... Read More about A comparison of the galling wear behaviour of PVD Cr and electroplated hard Cr thin films.

Corrosion of cast Stellite-3 analogue in simulated PWR conditions (2018)
Journal Article
Karimi, G., Shipway, P., Stewart, D., & Hussain, T. (2018). Corrosion of cast Stellite-3 analogue in simulated PWR conditions. Corrosion Science, 140, 402-411. https://doi.org/10.1016/j.corsci.2018.05.023

© 2018 Elsevier Ltd Wear resistant alloys are required for deployment in pressurised water reactor primary circuits and in this context, the corrosion behaviour of a cast cobalt-based alloy following exposure for 30 days in lithiated water at 300 °C... Read More about Corrosion of cast Stellite-3 analogue in simulated PWR conditions.

Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution (2018)
Journal Article
Reddy, L., Preston, S. P., Shipway, P., Davis, C., & Hussain, T. (2018). Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution. Surface and Coatings Technology, 349, 198-207. https://doi.org/10.1016/j.surfcoat.2018.05.054

As a candidate coating material for heat-exchanger surfaces in commercial power generation boiler, an amorphous/glass forming Fe-Cr-B alloy NanoSteel SHS 7170 was deposited by a 2 kW fibre laser onto a boiler grade steel substrate (15Mo3). A comprehe... Read More about Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution.

The role of a thermally sprayed CuNiIn underlayer in the durability of a dry-film lubricant system in fretting: a phenomenological model (2018)
Journal Article
Barman, K., Shipway, P., Voisey, K., & Pattinson, G. (2018). The role of a thermally sprayed CuNiIn underlayer in the durability of a dry-film lubricant system in fretting: a phenomenological model. Tribology International, 123, https://doi.org/10.1016/j.triboint.2018.03.018

Dry film lubricant coatings (DFL) are employed to reduce friction and damage in highly loaded contacts. Metallic underlayers, e.g. CuNiIn, can be beneficial however, there is no detailed explanation of the mechanism. This work investigates the effect... Read More about The role of a thermally sprayed CuNiIn underlayer in the durability of a dry-film lubricant system in fretting: a phenomenological model.

An experimental study on the key fretting variables for flexible marine risers (2017)
Journal Article
O’Halloran, S., Harte, A., Shipway, P., & Leen, S. (2018). An experimental study on the key fretting variables for flexible marine risers. Tribology International, 117, https://doi.org/10.1016/j.triboint.2017.07.032

This paper presents an experimental investigation into the effects of contact conformity, contact pressure and displacement amplitude on the gross-slip fretting behaviour grease-lubricated cylinder-on-flat contacts in the context of flexible marine r... Read More about An experimental study on the key fretting variables for flexible marine risers.

The effect of coating architecture and defects on the corrosion behaviour of a PVD multilayer Inconel 625/Cr coating (2017)
Journal Article
Daure, J., Voisey, K., Shipway, P., & Stewart, D. (2017). The effect of coating architecture and defects on the corrosion behaviour of a PVD multilayer Inconel 625/Cr coating. Surface and Coatings Technology, 324, https://doi.org/10.1016/j.surfcoat.2017.06.009

This paper investigates the effect of substrate surface finish and deposition conditions of PVD multilayer Inconel 625/Cr coatings on their ability to act as a corrosion-barrier. The corrosion-barrier performance of the coatings was characterized by... Read More about The effect of coating architecture and defects on the corrosion behaviour of a PVD multilayer Inconel 625/Cr coating.

The role of temperature and frequency on fretting wear of a like-on-like stainless steel contact (2017)
Journal Article
Jin, X., Shipway, P., & Sun, W. (2017). The role of temperature and frequency on fretting wear of a like-on-like stainless steel contact. Tribology Letters, 65, Article 77. https://doi.org/10.1007/s11249-017-0858-0

The influences of environmental temperature and fretting frequency on the mechanisms and rates of wear in a like-on-like 304 stainless steel contact were examined, and mainly attributed to changes in the mechanical response of the bulk material and t... Read More about The role of temperature and frequency on fretting wear of a like-on-like stainless steel contact.

Tribology: Friction and wear of engineering materials (2017)
Book
Hutchings, I., & Shipway, P. (2017). Tribology: Friction and wear of engineering materials. (2nd). Butterworth-Heinemann

© 2017 Ian Hutchings and Philip Shipway. Published by Elsevier Ltd. All rights reserved. Tribology: Friction and Wear of Engineering Materials, Second Edition covers the fundamentals of tribology and the tribological response of all classes of materi... Read More about Tribology: Friction and wear of engineering materials.

Sliding wear analysis of cobalt based alloys in nuclear reactor conditions (2017)
Journal Article
McCarron, R., Stewart, D., Shipway, P., & Dini, D. (2017). Sliding wear analysis of cobalt based alloys in nuclear reactor conditions. Wear, 376-377(B), https://doi.org/10.1016/j.wear.2016.12.018

The study of the wear behaviour of cobalt based alloys in nuclear reactor environmental conditions is the focus of this work. The alloys are used in components within reactors due to their excellent wear and corrosion resistance and their high hardne... Read More about Sliding wear analysis of cobalt based alloys in nuclear reactor conditions.

Effect of test conditions on the temperature at which a protective debris bed is formed in fretting of a high strength steel (2017)
Journal Article
Hayes, E., & Shipway, P. (2017). Effect of test conditions on the temperature at which a protective debris bed is formed in fretting of a high strength steel. Wear, 376-377(B), https://doi.org/10.1016/j.wear.2017.01.057

It is well known that mechanisms and rates of fretting wear of many metals are dependent upon the temperature of the environment; specifically, it is known that a transition temperature exists, above which the debris forms a protective bed in the con... Read More about Effect of test conditions on the temperature at which a protective debris bed is formed in fretting of a high strength steel.

HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion (2017)
Journal Article
Reddy, L., Shipway, P., Davis, C., & Hussain, T. (in press). HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion. Oxidation of Metals, https://doi.org/10.1007/s11085-017-9774-9

Biomass is often considered as a low carbon alternative to fossil fuels in the power industry. However the heat exchangers in biomass plants can suffer from chloride based aggressive fireside corrosion. A commercially available amorphous Fe-Cr-B allo... Read More about HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion.

Evolution of damage in MoS2-based dry film lubricants (DFLs) in fretting wear – the effect of DFL thickness and contact geometry (2017)
Journal Article
Barman, K., Shipway, P., Voisey, K., & Pattinson, G. (2017). Evolution of damage in MoS2-based dry film lubricants (DFLs) in fretting wear – the effect of DFL thickness and contact geometry. Progress in Organic Coatings, 105, https://doi.org/10.1016/j.porgcoat.2016.12.022

Dry film lubricant (DFL) coatings are widely used to reduce coefficients of friction and damage in highly loaded contacts. This work investigates the behaviour of a commercially available MoS2-based DFL in a cylinder-on-flat contact geometry with a f... Read More about Evolution of damage in MoS2-based dry film lubricants (DFLs) in fretting wear – the effect of DFL thickness and contact geometry.

A numerical methodology for predicting tool wear in Friction Stir Welding (2016)
Journal Article
Hasan, A., Bennett, C., Shipway, P., Cater, S., & Martin, J. (2017). A numerical methodology for predicting tool wear in Friction Stir Welding. Journal of Materials Processing Technology, 241, https://doi.org/10.1016/j.jmatprotec.2016.11.009

A novel methodology for predicting tool wear in FSW based on a CFD model, coupled with a modified Archard equation, is presented considering the effect of the deformation of the highly viscous flow around the tool on tool wear. A validation process... Read More about A numerical methodology for predicting tool wear in Friction Stir Welding.

A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers (2016)
Journal Article
O'Halloran, S., Shipway, P., Connaire, A., Leen, S. B., & Harte, A. (2017). A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers. Tribology International, 108, https://doi.org/10.1016/j.triboint.2016.10.020

This paper presents a combined experimental and computational methodology for fretting wear-fatigue prediction of pressure armour wire in flexible marine risers. Fretting wear, friction and fatigue parameters of pressure armour material have been cha... Read More about A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers.

A numerical comparison of the flow behaviour in Friction Stir Welding (FSW) using unworn and worn tool geometries (2015)
Journal Article
Hasan, A., Bennett, C., & Shipway, P. (in press). A numerical comparison of the flow behaviour in Friction Stir Welding (FSW) using unworn and worn tool geometries. Materials and Design, 87, https://doi.org/10.1016/j.matdes.2015.08.016

The tool is a key component in the Friction Stir Welding (FSW) process, but the tool degrades and changes shape during use; however, only a limited number of experimental studies have been undertaken in order to understand the effect that worn tool g... Read More about A numerical comparison of the flow behaviour in Friction Stir Welding (FSW) using unworn and worn tool geometries.

The role of frictional power dissipation (as a function of frequency) and test temperature on contact temperature and the subsequent wear behaviour in a stainless steel contact in fretting (2015)
Journal Article
Jin, X., Shipway, P., & Sun, W. (2015). The role of frictional power dissipation (as a function of frequency) and test temperature on contact temperature and the subsequent wear behaviour in a stainless steel contact in fretting. Wear, 330-331, 103-111. https://doi.org/10.1016/j.wear.2015.02.022

Temperature is known to affect the fretting wear behaviour of metals; generally, a critical temperature is observed, above which there are substantial reductions in wear rate, with these being associated with the development of protective oxide beds... Read More about The role of frictional power dissipation (as a function of frequency) and test temperature on contact temperature and the subsequent wear behaviour in a stainless steel contact in fretting.

Fretting wear mapping: the influence of contact geometry and frequency on debris formation and ejection for a steel-on-steel pair (2015)
Journal Article
Warmuth, A. R., Shipway, P. H., & Sun, W. (2015). Fretting wear mapping: the influence of contact geometry and frequency on debris formation and ejection for a steel-on-steel pair. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 471(2178), https://doi.org/10.1098/rspa.2014.0291

This paper examines the influence of contact geometry and oscillation frequency in a steel cylinder-on-steel flat fretting contact, with contact geometry being varied via the cylinder radius. Fretting frequency did not significantly impact the wear b... Read More about Fretting wear mapping: the influence of contact geometry and frequency on debris formation and ejection for a steel-on-steel pair.

Is the wear coefficient dependent upon slip amplitude in fretting?: Vingsbo and Söderberg revisited (2014)
Journal Article
Pearson, S., & Shipway, P. (2014). Is the wear coefficient dependent upon slip amplitude in fretting?: Vingsbo and Söderberg revisited. Wear, 330, https://doi.org/10.1016/j.wear.2014.11.005

More than 25 years ago, Vingsbo and Söderberg published a seminal paper regarding the mapping of behaviour in fretting contacts (O. Vingsbo, S. Söderberg, On fretting maps, Wear, 126 (1988) 131–147). In this paper, it was proposed that in the gross-s... Read More about Is the wear coefficient dependent upon slip amplitude in fretting?: Vingsbo and Söderberg revisited.

The influence of surface hardness on the fretting wear of steel pairs: its role in debris retention in the contact (2014)
Journal Article
Lemm, J., Warmuth, A., Pearson, S., & Shipway, P. (2014). The influence of surface hardness on the fretting wear of steel pairs: its role in debris retention in the contact. Tribology International, 81, https://doi.org/10.1016/j.triboint.2014.09.003

The influence of specimen hardness (between 275 kgf mm−2 and 835 kgf mm−2) in an AISI Type O1 steel-on-steel fretting contact was examined. In equal-hardness pairs, a variation in the wear volume of around 20% across the range of hardnesses examined... Read More about The influence of surface hardness on the fretting wear of steel pairs: its role in debris retention in the contact.

The effect of temperature on wear and friction of a high strength steel in fretting (2013)
Journal Article
Pearson, S., Shipway, P., Abere, J., & Hewitt, R. (2013). The effect of temperature on wear and friction of a high strength steel in fretting. Wear, 303(1-2), https://doi.org/10.1016/j.wear.2013.03.048

This paper investigates the effect of temperature (between 24 °C and 450 °C) on the wear rate and friction coefficient of a high strength alloy steel (Super-CMV) in gross sliding fretting in air. It was found that whilst there was significant loss of... Read More about The effect of temperature on wear and friction of a high strength steel in fretting.

Abrasive wear behaviour of conventional and large-particle tungsten carbide-based cermet coatings as a function of abrasive size and type (2011)
Journal Article
Kamdi, Z., Shipway, P., Voisey, K., & Sturgeon, A. (2011). Abrasive wear behaviour of conventional and large-particle tungsten carbide-based cermet coatings as a function of abrasive size and type. Wear, 271(9-10), https://doi.org/10.1016/j.wear.2010.12.060

Abrasive wear behaviour of materials can be assessed using a wide variety of testing methods, and the relative performance of materials will tend to depend upon the testing procedure employed. In this work, two cermet type coatings have been examined... Read More about Abrasive wear behaviour of conventional and large-particle tungsten carbide-based cermet coatings as a function of abrasive size and type.