Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation

Li, C.L.; Murray, J.W.; Voisey, K.T.; Clare, A.T.; McCartney, D.G.

doi:10.1016/j.apsusc.2013.05.005

Precision enhanced electrochemical jet processing (2018)
Journal Article
Clare, A. T., Speidel, A., Bisterov, I., Jackson-Crisp, A., & Mitchell-Smith, J. (2018). Precision enhanced electrochemical jet processing. CIRP Annals - Manufacturing Technology, 67(1), 205-208. https://doi.org/10.1016/j.cirp.2018.04.086

Through electro-physical modification of the electrode gap in electrochemical jet techniques, precision has been shown to be greatly increased. Repeatable kerf widths approaching the diameter of the nozzle are demonstrated and the individual contribu... Read More about Precision enhanced electrochemical jet processing.

The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes (2018)
Journal Article
Xu, Z., Dunleavey, J., Antar, M., Hood, R., Soo, S., Kucukturk, G., Hyde, C., & Clare, A. (2018). The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes. International Journal of Fatigue, 111, https://doi.org/10.1016/j.ijfatigue.2018.02.022

Machining processes are known to drastically impact the performance and lifetime of a component subjected to fatigue in service. Therefore, understanding the effect of manufacturing processes on surface integrity is vital to determine their suitabili... Read More about The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes.

Creep behaviour of inconel 718 processed by laser powder bed fusion (2018)
Journal Article
Xu, Z., Hyde, C., Tuck, C., & Clare, A. (2018). Creep behaviour of inconel 718 processed by laser powder bed fusion. Journal of Materials Processing Technology, 256, https://doi.org/10.1016/j.jmatprotec.2018.01.040

Additive manufacturing lends itself well to the manufacture of aerospace parts due to the high complexity and small volume of many components found in modern aero engines. By exploiting additive manufacturing design freedoms, enhanced part functional... Read More about Creep behaviour of inconel 718 processed by laser powder bed fusion.

On the machinability of directed energy deposited Ti6Al4V (2017)
Journal Article
Oyelola, O., Crawforth, P., M’Saoubi, R., & Clare, A. T. (2018). On the machinability of directed energy deposited Ti6Al4V. Additive Manufacturing, 19, https://doi.org/10.1016/j.addma.2017.11.005

Current class Directed Energy Deposition (DED) techniques used for component manufacture and repair have inherently poor geometrical tolerance. Hence, there remains a requirement to apply conventional machining strategies post build in order to achie... Read More about On the machinability of directed energy deposited Ti6Al4V.

Modelling of single spark interactions during electrical discharge coating (2017)
Journal Article
Algodi, S. J., Clare, A. T., & Brown, P. D. (2018). Modelling of single spark interactions during electrical discharge coating. Journal of Materials Processing Technology, 252, https://doi.org/10.1016/j.jmatprotec.2017.10.029

Electrical discharge coating (EDC) methods may be used to enhance the surface functionality of electrical discharge machined components. However, industrial uptake of EDC has been restricted due to limited understanding of the fundamental interaction... Read More about Modelling of single spark interactions during electrical discharge coating.

Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing (2017)
Presentation / Conference Contribution
Xu, Z., Hyde, C. J., Thompson, A., Leach, R. K., Maskery, I., Tuck, C., & Clare, A. T. (2017). Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing.

The mechanical performance of additively manufactured (AM) components remains an issue, limiting the implementation of AM technologies. In this work, a new method is presented, to examine the evolution of defects in an Inconel 718 two-bar test specim... Read More about Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing.

Staged thermomechanical testing of nickel superalloys produced by selective laser melting (2017)
Journal Article
Xu, Z., Hyde, C. J., Thompson, A., Leach, R. K., Maskery, I., Tuck, C., & Clare, A. T. (2017). Staged thermomechanical testing of nickel superalloys produced by selective laser melting. Materials and Design, 133, 520-527. https://doi.org/10.1016/j.matdes.2017.08.009

The creep performance of additively manufactured components remains an issue before additive manufacturing can be put fully implemented. In this study, Inconel 718 two-bar specimens are produced by selective laser melting and subjected to a ‘staged’... Read More about Staged thermomechanical testing of nickel superalloys produced by selective laser melting.

Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces (2017)
Journal Article
Colombi, A., Ageeva, V., Smith, R. J., Clare, A. T., Patel, R., Clark, M., …Craster, R. V. (2017). Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces. Scientific Reports, 7(1), Article 6750. https://doi.org/10.1038/s41598-017-07151-6

Recent years have heralded the introduction of metasurfaces that advantageously combine the vision of sub-wavelength wave manipulation, with the design, fabrication and size advantages associated with surface excitation. An important topic within met... Read More about Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces.

Electrolyte design for suspended particulates in electrolyte jet processing (2017)
Journal Article
Clare, A. T., Speidel, A., Mitchell-Smith, J., & Patwardhan, S. (2017). Electrolyte design for suspended particulates in electrolyte jet processing. CIRP Annals - Manufacturing Technology, 66(1), 201-204. https://doi.org/10.1016/j.cirp.2017.04.133

The addition of particles (<1 μm) to electrolyte feedstocks results in marked changes to the morphology of deposits when electrolyte jet processing (EJP) compared to electrolyte only feedstocks. Through the use of a ‘carrier’ electrolyte in additive...

Controlling DC permeability in cast steels (2017)
Journal Article
Sumner, A., Gerada, C., Brown, N., & Clare, A. (2017). Controlling DC permeability in cast steels. Journal of Magnetism and Magnetic Materials, 429, 79-85. https://doi.org/10.1016/j.jmmm.2016.12.137

Annealing (at multiple cooling rates) and quenching (with tempering) was performed on specimens of cast steel of varying composition. The aim was to devise a method for selecting the steel with the highest permeability, from any given range of steels... Read More about Controlling DC permeability in cast steels.

In-situ synthesis of titanium aluminides by direct metal deposition (2016)
Journal Article
Gasper, A., Catchpole-Smith, S., & Clare, A. T. (2017). In-situ synthesis of titanium aluminides by direct metal deposition. Journal of Materials Processing Technology, 239, 230-239. https://doi.org/10.1016/j.jmatprotec.2016.08.031

This study explores the capabilities of methods for in-situ synthesis of titanium aluminides using the Direct Metal Deposition process. This allows for the functional grading of components which will be required for next generation aerospace componen... Read More about In-situ synthesis of titanium aluminides by direct metal deposition.

Complex functional surface design for additive manufacturing (2016)
Presentation / Conference Contribution
Morris, S., Dudman, J., Körner, L., Melo, P., Newton, L., & Clare, A. T. (2016). Complex functional surface design for additive manufacturing.

This paper presents a new methodology for the creation of advanced surfaces which can be produced by Additive Manufacturing (AM) methods. Since there is no cost for enhanced complexity, AM allows for new capabilities in surface design. Micro-scale su... Read More about Complex functional surface design for additive manufacturing.

Machining of additively manufactured parts: implications for surface integrity (2016)
Journal Article
Oyelola, O., Crawforth, P., M'Saoubi, R., & Clare, A. T. (in press). Machining of additively manufactured parts: implications for surface integrity. Procedia CIRP, 45, https://doi.org/10.1016/j.procir.2016.02.066

Additive manufacturing methods continue to move towards production ready technologies with the widely extolled virtues of rapid transition from design to part and enhanced design freedoms. However, due to fundamental limitations of laser based proces... Read More about Machining of additively manufactured parts: implications for surface integrity.

Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography (2016)
Journal Article
Maskery, I., Aboulkhair, N., Corfield, M., Tuck, C., Clare, A., Leach, R. K., …Hague, R. J. (2016). Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography. Materials Characterization, 111, https://doi.org/10.1016/j.matchar.2015.12.001

We used X-ray computed tomography (CT), microscopy and hardness measurements to study Al–Si10–Mg produced by selective laser melting (SLM). Specimens were subject to a series of heat treatments including annealing and precipitation hardening. The spe... Read More about Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography.

Effect of prior laser microstructural refinement on the formation of amorphous layer in an Al86Co7.6Ce6.4 alloy (2014)
Journal Article
Li, C., Murray, J., Voisey, K., Clare, A., & McCartney, D. (2014). Effect of prior laser microstructural refinement on the formation of amorphous layer in an Al86Co7.6Ce6.4 alloy. Applied Surface Science, 289, https://doi.org/10.1016/j.apsusc.2013.10.140

Laser surface melting (LSM) pre-treatment was conducted before large area electron beam (LAEB) treatment in an attempt to eliminate the cracking of the amorphous layer. In our previous work, LAEB treatment successfully generated an amorphous layer on... Read More about Effect of prior laser microstructural refinement on the formation of amorphous layer in an Al86Co7.6Ce6.4 alloy.

TEM study on the electrical discharge machined surface of single-crystal silicon (2013)
Journal Article
Murray, J., Fay, M., Kunieda, M., & Clare, A. (2013). TEM study on the electrical discharge machined surface of single-crystal silicon. Journal of Materials Processing Technology, 213(5), https://doi.org/10.1016/j.jmatprotec.2012.11.028

EDM is a useful process for machining high-aspect ratio features with good accuracy in electrically conductive materials irrespective of their mechanical properties. With the ability of micro-EDM to compete with the resolution of conventional semi-co... Read More about TEM study on the electrical discharge machined surface of single-crystal silicon.

Surface finishing of intricate metal mould structures by large-area electron beam irradiation (2013)
Journal Article
Murray, J., Kinnell, P., Cannon, A., Bailey, B., & Clare, A. (2013). Surface finishing of intricate metal mould structures by large-area electron beam irradiation. Precision Engineering, 37(2), https://doi.org/10.1016/j.precisioneng.2012.11.007

The advancement of polymer moulding tools is increasingly focused on imparting not only form but also surface texture for functionality to the surfaces of parts that are created. Furthermore, the increasing demand for inexpensive and higher quality m... Read More about Surface finishing of intricate metal mould structures by large-area electron beam irradiation.

Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation (2013)
Journal Article
Li, C., Murray, J., Voisey, K., Clare, A., & McCartney, D. (2013). Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation. Applied Surface Science, 280, https://doi.org/10.1016/j.apsusc.2013.05.005

Amorphous Al-Co-Ce alloys are of interest because of their resistance to corrosion, but high cooling rates are generally required to suppress the formation of crystalline phases. In this study, the surface of a bulk crystalline Al-Co-Ce alloy of a gl... Read More about Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation.

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