|About this Abstract
||2010 TMS Annual Meeting & Exhibition
||Processing Materials for Properties
||Cold Gas Dynamic Spraying of Titanium: A Reliable and Environmentally Friendly Coating Deposition Process
||Wilson Wong, Stephen Yue, Eric Irissou, Jean-Gabriel Legoux
|On-Site Speaker (Planned)
Cold gas dynamic spray is a solid state high kinetic energy coating and free-form technique. Micrometres-scaled metallic powders are projected onto substrates at supersonic velocities to form a coating. This technique has initiated major interest in the aerospace industry due to its potential to manufacture aerospace engine components with minimal material waste, estimated with a capability to reduce waste of up to 90% compared to conventional fabrication methods. On account of the severe requirements in producing these components, cold sprayed coatings must prove themselves reliable to earn recognition in the industry. Thus, in this study, mechanical properties such as the bond strength of cold sprayed titanium coatings were evaluated. Various particle impact velocities were achieved by altering process conditions (temperature and pressure). Substrates of different surface roughness and hardness were investigated (aluminum alloy, pure titanium, and steel). Additionally, the coating properties were studied via scanning electron microscopy and microhardness testing.
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