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Maohang Zhang, Baicheng Zhang, Yaojie Wen, and Xuanhui Qu, Research progress on selective laser melting processing for nickel-based superalloy, Int. J. Miner. Metall. Mater., 29(2022), No. 3, pp.369-388. https://dx.doi.org/10.1007/s12613-021-2331-1
Maohang Zhang, Baicheng Zhang, Yaojie Wen, and Xuanhui Qu, Research progress on selective laser melting processing for nickel-based superalloy, Int. J. Miner. Metall. Mater., 29(2022), No. 3, pp.369-388. https://dx.doi.org/10.1007/s12613-021-2331-1
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选区激光熔化制备镍基高温合金研究进展

摘要: 选区激光熔化技术(SLM,selective laser melting)是目前金属增材制造领域最具潜力的工艺之一,可同时保证打印构件的高几何设计自由度、机械强度和制造精度,已广泛应于多种金属材料的加工。镍基高温合金是航空航天等领域的关键材料,在高温下仍旧可以保证优良的力学性能,但是由于其本身的强度、硬度较大,传统的加工方式周期长、成本高,愈发不能满足现代工业需求。因此,选区激光熔化迅速引领了镍基高温合金制备领域的技术变革。本文选取了CM247LC、Inconel 718、Inconel 626和Hastelloy X四种服役温度不同的镍基高温合金为对象,综述了近年来选区激光熔化制备镍基高温合金的研究进展。本文系统介绍了各种材料的激光工艺参数和热处理制度,并重点讨论了激光辐照与热处理工程中组织演变规律及其对力学性能的影响。同时,结合最新的工业进展,对选区激光熔化制备镍基高温合金的实际应用做了简要介绍。最后,对当前的技术发展进行了总结并提出了展望。

 

Research progress on selective laser melting processing for nickel-based superalloy

Abstract: Selective laser melting (SLM), an additive manufacturing process mostly applied in the metal material field, can fabricate complex-shaped metal objects with high precision. Nickel-based superalloy exhibits excellent mechanical properties at elevated temperatures and plays an important role in the aviation industry. This paper emphasizes the research of SLM processed Inconel 718, Inconel 625, CM247LC, and Hastelloy X, which are typical alloys with different strengthening mechanisms and operating temperatures. The strengthening mechanism and phase change evolution of different nickel-based superalloys under laser irradiation are discussed. The influence of laser parameters and the heat-treatment process on mechanical properties of SLM nickel-based superalloys are systematically introduced. Moreover, the attractive industrial applications of SLM nickel-based superalloy and printed components are presented. Finally, the prospects for nickel-based superalloy materials for SLM technology are presented.

 

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