Scanning strategy dependent tensile properties of selective laser melted GH4169

被引：40
作者：
Wang, Y. C. [1 ,2 ]
Lei, L. M. [3 ]
Shi, L. [3 ]
Wan, H. Y. [1 ,2 ]
Liang, F. [1 ,2 ]
Zhang, G. P. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
[3] AECC Shanghai Commercial Aircraft Engine Mfg Co L, Shanghai 201306, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2020年 / 788卷
基金：
中国国家自然科学基金;
关键词：
Superalloy; Selective laser melting; Scanning strategy; Tensile properties; Heterogeneous microstructure; STRAIN-GRADIENT PLASTICITY; HIGH-CYCLE FATIGUE; MECHANICAL-PROPERTIES; RESIDUAL-STRESS; CRYSTALLOGRAPHIC TEXTURE; METALLIC COMPONENTS; GRAIN-STRUCTURE; MICROSTRUCTURE; BEHAVIOR; DEFORMATION;
D O I：
10.1016/j.msea.2020.139616
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Tensile properties of GH4169 fabricated by selective laser melting under stripe and chessboard scanning strategies were investigated. The results show that the GH4169 specimens fabricated by the chessboard scanning strategy have higher tensile strengths and more evident tensile anisotropy than that of the specimens fabricated by the stripe scanning strategy. The strain hardening ability of the chessboard specimens superior to that of the stripe specimen is mainly attributed to the difference in residual stress magnitude arising from different scanning strategies and the unique processing-induced heterogeneous grain structure in the chessboard specimens.
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页数：10
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