A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy

By Zhihua Tian, Chaoqun Zhang, Dayong Wang, W. Liu, X. Fang, D. Wellmann, Yongtao Zhao, Yingtao Tian. Applied Sciences, 2019

154 citations recorded by the source corpus.

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.

Subfields: Automotive Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/c75117fbd89ffd02db9778bd2a7616db7ed60990

How researchers see this paper

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In Automotive Engineering

1. A. Nagalingam
2. Swee Hock Yeo
3. Han Huang
4. Jian-Yuan Lee

In Mechanical Engineering

1. Han Huang
2. Swee Hock Yeo
3. A. Nagalingam
4. Mingxing Zhang
5. Jian-Yuan Lee
6. P. Kelly

Citations in the corpus

• A Novel Strategy to Additively Manufacture 7075 Aluminium Alloy With Selective Laser Melting (2021, background): “Despite handful cases that reported crack elimination in Inconel 718 and 625 Ni alloys [10, 11] and Al-Cu-Mg alloy [12] through precise processing parameter optimization, the appropriate processing windows are very limited, which makes hard to scale up and commercialize because of the large variety ”
• A review on the state-of-the-art of surface finishing processes and related ISO/ASTM standards for metal additive manufactured components (2020, background): “In addition, the critical difference between F3055 and F3056 in terms of chemical composition is mainly the percentage of nickel, chromium, molybdenum, but the mechanical properties of AM components can be significant differences due to different phase in microstructure (Tian et al. 2019).”