0000000001059530
AUTHOR
Geoffrey Darut
MICRO-SCALE STUDY OF RESIDUAL STRESSES IN CR2O3 COATINGS SPRAYED BY APS
International audience; Whichever the application field, every material forming process generates residual stresses on the surface. While they are likely to enhance the aimed properties of the final mechanical part, these stresses may also drastically reduce them and result in early failures. Therefore, understanding the residual stress state remains a major challenge when coating complex parts, especially as most characterization methods at the microscopic scale involve specific sample preparation procedures which may affect the residual stresses field. This work investigates the residual stress state that exists in chromium oxide coatings deposited via Atmospheric Plasma Spray (APS), usin…
Emissions from metallic powder and high energy-based process - thermal spraying knowledge refresh
International audience; Recently, in different industrials sectors, emissions are subjected to rules and regulations which are coming increasingly stringent and more carefully monitored. And this is where thermal spraying, powder atomization and additive manufacturing come in metal powder and high energy-based processes. These technologies manufacture or use micrometer size feedstock. But the process characteristics as the heat source induces nanoparticle formation. The paper is to address a knowledge refresh on thermal spraying regarding emissions due to the process in relationship with working conditions, personal protection, dust filtration, etc. A survey has been conducted and the resul…