All Outputs (14)

The evolution of contact conditions during fretting wear tests with cylinder-on-flat and crossed-cylinder specimen configurations (2025)
Journal Article
Gichuki, A. J., Shipway, P. H., Rouse, J. P., Bennett, C. J., Koti, D., & Coll, E. (2025). The evolution of contact conditions during fretting wear tests with cylinder-on-flat and crossed-cylinder specimen configurations. Tribology International, 210, Article 110820. https://doi.org/10.1016/j.triboint.2025.110820

This study examines the dependence of fretting wear of a high strength steel using four non-conforming specimen configurations: cylinder-on-flat and crossed-cylinders, with both 6 mm and 160 mm radii cylinders. In each configuration, the wear of the... Read More about The evolution of contact conditions during fretting wear tests with cylinder-on-flat and crossed-cylinder specimen configurations.

The contact size dependence of wear rate in fretting: Understanding and rationalising data from tests with flat-on-flat, cylinder-on-flat and sphere-on-flat contact configurations (2025)
Journal Article
Shipway, P. H. (2025). The contact size dependence of wear rate in fretting: Understanding and rationalising data from tests with flat-on-flat, cylinder-on-flat and sphere-on-flat contact configurations. Wear, Article 205783. https://doi.org/10.1016/j.wear.2025.205783

In fretting contacts between metals such as steels, wear normally takes place by the formation of an oxide debris in the contact and its subsequent expulsion. There are three stages to this process: (i) the transport of oxygen into the closed contact... Read More about The contact size dependence of wear rate in fretting: Understanding and rationalising data from tests with flat-on-flat, cylinder-on-flat and sphere-on-flat contact configurations.

Characterization of damage in galling testing of austenitic stainless steel as a function of pressure and sliding distance (2025)
Journal Article
Kóti, D., Daure, J. L., Neate, N. C., Stewart, D. A., & Shipway, P. H. (2025). Characterization of damage in galling testing of austenitic stainless steel as a function of pressure and sliding distance. Wear, Article 205776. https://doi.org/10.1016/j.wear.2025.205776

It is well known that stainless steel is prone to galling, and in previous work, we have demonstrated that the degree of damage following galling tests in such materials is a function of both contact pressure and sliding distance. However, it is not... Read More about Characterization of damage in galling testing of austenitic stainless steel as a function of pressure and sliding distance.

The role of tribologically transformed structures and debris in fretting of metals (2023)
Book Chapter
Shipway, P. H. (2023). The role of tribologically transformed structures and debris in fretting of metals. In T. Liskiewicz, & D. Dini (Eds.), Fretting Wear and Fretting Fatigue: Fundamental Principles and Applications (67-85). Elsevier. https://doi.org/10.1016/B978-0-12-824096-0.00005-6

In fretting wear of metals, debris is commonly in the form of oxide. Wear occurs when such debris is expelled from the contact, the observed wear rate depending upon: (i) oxygen transport into the closed contact; (ii) oxide debris formation as a resu... Read More about The role of tribologically transformed structures and debris in fretting of metals.

Adhesive transfer operates during galling (2022)
Journal Article
Rogers, S. R., Daure, J., Shipway, P., Stewart, D., & Dye, D. (2022). Adhesive transfer operates during galling. Scripta Materialia, 221, Article 114960. https://doi.org/10.1016/j.scriptamat.2022.114960

In order to reduce cobalt within the primary circuit of pressurised water reactors (PWR's), wear-resistant steels are being researched and developed. In particular interest is the understanding of galling mechanisms, an adhesive wear mechanism which... Read More about Adhesive transfer operates during galling.

Requirements for developing high temperature creep life models for ageing pipework systems using power plant condition monitoring and inspection data (2020)
Journal Article
Bonetti, R., Morris, A., Shipway, P. H., & Sun, W. (2020). Requirements for developing high temperature creep life models for ageing pipework systems using power plant condition monitoring and inspection data. International Journal of Pressure Vessels and Piping, 188, Article 104233. https://doi.org/10.1016/j.ijpvp.2020.104233

© 2020 A novel creep life assessment methodology is proposed in this paper that uses periodic and routine inspection data in conjunction with online operational data and other computed parameters, such as the ‘rate of change’, and where applicable co... Read More about Requirements for developing high temperature creep life models for ageing pipework systems using power plant condition monitoring and inspection data.

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.

Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact (2018)
Journal Article
Qin, W., Jin, X., Kirk, A., Shipway, P., & Sun, W. (2018). Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact. Tribology International, 120, https://doi.org/10.1016/j.triboint.2018.01.016

It has generally been assumed that initial surface roughness has significant influences on local frictional shear stresses and flash temperatures in fretting contacts. However, since these hypotheses are difficult to directly measure, the frictional... Read More about Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact.

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.

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.

Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling (2016)
Journal Article
Tobi, A. M., Sun, W., & Shipway, P. (in press). Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling. Tribology International, https://doi.org/10.1016/j.triboint.2016.12.009

A finite-element-based wear modelling methodology and a computational device for decoupling wear effects is presented in this study. The decoupling of wear effects facilitates the capture of plasticity accumulation on a particular wear-scarring profi... Read More about Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling.

The role of geometry changes and debris formation associated with wear on the temperature field in fretting contacts (2016)
Journal Article
Jin, X., Sun, W., & Shipway, P. (2016). The role of geometry changes and debris formation associated with wear on the temperature field in fretting contacts. Tribology International, 102, https://doi.org/10.1016/j.triboint.2016.05.043

The temperature of a fretting contact is known to be a key factor in its development. However, as a test proceeds, the wear scar changes, both geometrically and through the formation of oxide-based debris-beds. Accordingly, the effects of these on th... Read More about The role of geometry changes and debris formation associated with wear on the temperature field in fretting contacts.

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 effect of laser transformation notching on the controlled fracture of a high carbon (C70S6 ) steel (2008)
Journal Article
Zhang, D., Harris, S. J., McCartney, D., Pashby, I., Powell, J., Shipway, P., & Voisey, K. (2008). The effect of laser transformation notching on the controlled fracture of a high carbon (C70S6 ) steel. Materials Science and Engineering: A, 489(1-2), https://doi.org/10.1016/j.msea.2007.12.040

A high carbon (C70S6) steel has been laser surface treated using CO2 and Diode lasers in order to produce an embrittled region to act as a fracture notch. Such a process has been investigated as a precursor to the fracture splitting of automotive eng... Read More about The effect of laser transformation notching on the controlled fracture of a high carbon (C70S6 ) steel.