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Reversed austenite in additively manufactured martensitic stainless steel
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Reversed austenite in additively manufactured martensitic stainless steel

Wei Chen, J.H. Luan, Lianyong Xu, Yongdian Han, Lei Zhao, Ji-Jung Kai, Bo Xiao 和 Hongyang Jing
Materials Science and Engineering A, 卷.834, 142597
02/2022
DOI: https://doi.org/10.1016/j.msea.2022.142597

摘要

Directed energy deposition Heat treatment Martensitic stainless steel Reversed austenite Materials Science (all) Condensed Matter Physics Mechanics of Materials Mechanical Engineering
Additively manufactured 15-5 PH stainless steels containing reversed nano-scale austenite dispersed in martensitic matrix exhibit improved strength-ductility combination and fatigue resistance. The underlying mechanisms responsible for these improvements are the crack closure effect caused by transformation-induced volume expansion and the transformation-induced plasticity effect.

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