Effect of the residual stresses on cyclic behavior of additively manufactured Ti-6Al-4V
The freedom of design of Additively Manufactured laser beam melting parts allows a more organic design using thinner, weight saving structures. The high temperature gradients during the LBM process introduce residual stresses (RS) into the produced parts. Non-optimized scanning procedure high RS can result in cracking and distortion of the produced part even during fabrication. Therefore, to achieve advance mechanical performance, stress-relieving heat treatment has to be performed. It has been reported in that the conventional heat treatment, which is applied to forged and cast Ti-6Al-4V, does not lead to expectable results. Therefore, heat treatment optimization for LBM is required. This study aims to understand the influence of RS and heat treatment on low cycle fatigue behavior in LBM specimens of aerospace alloys Ti-6Al-4V.
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MISHUROVA Tatiana; BRUNO Giovanni; EVANS Alexander; PIRLING Thilo and Itziar Serrano-Munoz. (2019). Effect of the residual stresses on cyclic behavior of additively manufactured Ti-6Al-4V. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-02-272
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