Residual stress analysis in Ti64 alloy fabricated by Additive Layer Manufacturing
Ti64 alloys are of great interest for aerospace applications respectively because of their low density, high mechanical and corrosion properties. Nevertheless large scale production is still restricted. It is therefore essential to use titanium alloys in the most efficient way in order to minimize the amount of wasted metal. Near-Net-Shape (NNS) processing means including powder metallurgy, such as additive layer manufacturing (ALM), offer the possibility to meet this need. The present project focuses on selective laser melting (SLM) fabrication process of Ti64 based components and the relationship between SLM parameters, residual stresses and microstructure. It consists in developing an experimental and numerical dialogue between process parameters, microstructural and mechanical properties. The present experiment aims at the determination of residuals stresses induced in the bulk of specimens fabricated with various strategies of SLM process (scanning direction, hatch angle).
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MALARD Benoit; DUMONTET; Thomas C. Hansen; PIRLING Thilo and RATEL RAMOND Nicolas. (2018). Residual stress analysis in Ti64 alloy fabricated by Additive Layer Manufacturing. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-02-230
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