Decarburization of stainless steel during selective laser melting and its influence on Young's modulus, hardness and tensile strength

作者:Zhao, Xiao; Song, Bo*; Zhang, Yuanjie; Zhu, Xiaomeng; Wei, Qingsong; Shi, Yusheng
来源:Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2015, 647: 58-61.
DOI:10.1016/j.msea.2015.08.061

摘要

Stainless steel was investigated in terms of the evolution mechanism of chemical elements during selective laser melting. It was found that 21% carbon was lost and the decarburization occurred. The carbon-gradient structure contributes to a low Young's Modulus and hardness in molten pool boundary and also anisotropic tensile properties.