Anisotropic fatigue crack propagation in wire arc additively manufactured 316L stainless steel

被引：4
作者：
Ajay, V. [1 ]
Nakrani, Jignesh [1 ]
Mishra, Neeraj K. [1 ]
Shrivastava, Amber [1 ]
机构：
[1] Indian Inst Technol, Mech Engn Dept, Mumbai 400076, Maharashtra, India
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 177卷
关键词：
Wire arc additive manufacturing; Fatigue crack growth; Anisotropy; SS; 316L; MECHANICAL-PROPERTIES; GROWTH-BEHAVIOR; MICROSTRUCTURE; ORIENTATION;
D O I：
10.1016/j.ijfatigue.2023.107976
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This work investigates the anisotropy with the fatigue crack propagation behaviour of wire arc additive man-ufactured 316L stainless steel. Tension and fatigue crack growth tests were conducted on specimens prepared along the traverse, build and diagonal directions from single bead wall deposits. Anisotropy was observed with the fatigue crack propagation behaviour and tensile properties. The fatigue crack growth rates were comparable along the build and traverse directions. However, the slowest crack growth rate was observed along the diagonal direction. The high ductility observed along the diagonal direction limits the crack growth rate.
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页数：13
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