Achieving high strength and ductility in 17-4 PH steel with a periodic layer structure by laser direct metal depositing and aging

被引:13
|
作者
Yu, Zhiyuan [1 ]
Chai, Ze [1 ]
Xu, Jijin [1 ]
Chen, Jieshi [2 ]
Chen, Junmei [1 ]
Yu, Chun [1 ]
Lu, Hao [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[2] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China
基金
中国国家自然科学基金;
关键词
Laser direct metal deposition; Aging; Periodic structure; Strain partitioning; Ductility; MECHANICAL-PROPERTIES; MICROSTRUCTURAL CHARACTERIZATION; STAINLESS-STEEL; AUSTENITE; TRANSFORMATION;
D O I
10.1016/j.msea.2021.141787
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A periodic layer (PL) structure characterized with interval distribution of austenite for 17-4 PH steel is achieved by the laser direct metal deposition and aging. The synergism of strain partitioning hardening and austenitic transformation-induced plasticity contributes crucially to the excellent strength-ductility combination in the PL structured 17-4 PH steel.
引用
收藏
页数:5
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