The optimization of residual stress in arc bridge Hastelloy X components fabricated by Laser Powder Bed Fusion
Yi Liu,
Xuewei Fang,
Xinzhi Li
et al.
Abstract:Laser Powder Bed Fusion (L-PBF) has been widely used in various elds, but due to the inherent complex thermal history and ultra-high solidi cation rate in the L-PBF process, detrimental residual stresses inevitably form inside the component. In this study, the formation mechanisms of residual stress and the strategies to reduce them were investigated during L-PBF of Hastelloy components. Components with simple block geometry were rst fabricated with different deposition strategies, i.e., scanning island size a… Show more
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