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

被引：23

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

页数：14

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