A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy
Source abstract
Abstract
The Inconel 625 (IN625) superalloy has a high strength, excellent fatigue, and creep resistance under high-temperature and high-pressure conditions, and is one of the critical materials used for manufacturing high-temperature bearing parts of aeroengines. However, the poor workability of IN625 alloy prevents IN625 superalloy to be used in wider applications, especially in applications requiring high geometrical complexity. Laser powder bed fusion (LPBF) is a powerful additive manufacturing process which can produce metal parts with high geometrical complexity and freedom. This paper reviews the studies that have been done on LPBF of IN625 focusing on the microstructure, mechanical properties, the development of residual stresses, and the mechanism of defect formation. Mechanical properties such as microhardness, tensile properties, and fatigue properties reported by different researchers are systematically summarized and analyzed. Finally, the remaining issues and suggestions on future research on LPBF of IN625 alloy parts are put forward.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
State Key Laboratory of Long-Life High Temperature Materials, Dong Fang Turbine Co., Ltd., Deyang 61800, China
Dongfang Electric Corporation Dongfang Turbine Co., Ltd., Deyang 618000, China
Department of Engineering, University of Cambridge, Cambridge CB3 0FS, UK
Institute for Advanced Manufacturing, Shandong University of Technology, Zibo 255049, China
Department of Engineering, Lancaster University, Bailrigg, Lancaster LA1 4YW, UK
Funding
National Natural Science Foundation of China · Natural Science Foundation of Shanghai · State Key Laboratory of Long-life High Temperature Materials
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