Fatigue crack growth in IN718/316L multi-materials layered structures fabricated by laser powder bed fusion

被引：22
|
作者：
Duval-Chaneac, M. S. [1 ,2 ]
Gao, N. [1 ]
Khan, R. H. U. [3 ]
Giles, M. [1 ]
Georgilas, K. [2 ]
Zhao, X. [1 ]
Reed, P. A. S. [1 ]
机构：
[1] Univ Southampton, Fac Engn & Phys Sci, Mat Res Grp, Southampton SO17 1BJ, Hants, England
[2] TWI Ltd, NSIRC, Granta Pk, Cambridge CB21 6AL, England
[3] TWI Ltd, Granta Pk, Cambridge CB21 6AL, England
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2021年 / 152卷
基金：
英国工程与自然科学研究理事会;
关键词：
Multi-materials; Additive manufacturing (AM); Interface; Fatigue analysis; Crack growth rate; STAINLESS-STEEL; INCONEL; 718; MECHANICAL-PROPERTIES; MATERIALS CHALLENGES; ENERGY DENSITY; HEAT-TREATMENT; 316L; BEHAVIOR; MICROSTRUCTURE; PLASTICITY;
D O I：
10.1016/j.ijfatigue.2021.106454
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Multi-materials additive manufacturing (MMAM) allows the functional optimisation of components by tailoring the addition of alloys at different design locations in a single operation. In this study Laser Powder Bed Fusion (L-PBF) technique was used to manufacture layered specimens combining IN718 and 316L materials. The micro-structure and mechanical properties were studied by scanning electron microscopy (SEM), tensile, micro and nanohardness testing. The fatigue tests were performed to determine the crack propagation process through multi-layer specimens in the as-built (AB) state.
引用
收藏
页数：14
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