| 摘要: |
| 采用激光粉末床熔融技术（LPBF）制造镍基高温合金具有较大的生产潜力，在航空航天领域有着广泛的应用，因此这一技术受到了高度关注。近年来，为了更好地了解LPBF-镍基高温合金的性能和使用极限，相关学者对其开展了大量的研究工作。本文基于近年来多项LPBF-镍基高温合金的研究，阐述了该领域的研究目标和重要发现，并列举了LPBF镍基高温合金在航天工业中的具体应用。总体分析了工艺参数和热处理对镍基高温合金及其复合材料增材构件组织及力学性能的影响，以及LPBF过程中常用的建模方法及研究进展。最后，对LPBF-镍基高温合金的未来发展方向提出了展望。 |
| 关键词: 激光粉末床熔融技术 镍基高温合金 微观结构 拉伸性能 疲劳性能 |
| 基金项目:国家自然科学基金(522***48)；山东省自然科学基金（ZR2****E087） |
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| Research Progress on Laser Powder Bed Fusion of Ni-based High-temperature Alloys for Aerospace |
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Song Xiaoguo1, Hu Jixu1, Lin Danyang1, Ma Rui*2, Wang Yajun2, Shi Zhifeng2, Li Sai2
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1. Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai 264209;2. Beijing Power Machinery Institute, Beijing 100074
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| Abstract: |
| The adoption of Laser Powder Bed Fusion (LPBF) technology for manufacturing Ni-based high-temperature alloys exhibits significant production potential and finds extensive applications in the aerospace field, thus attracting considerable attention. In recent years, a substantial amount of research has been conducted by scholars to better understand the performance and ultimate capabilities of LPBF-nickel-based high-temperature alloys. This paper, based on recent studies on various LPBF-nickel-based alloys, elucidates the research objectives and significant findings in this field. A comprehensive analysis is presented on the effects of process parameters and heat treatment on the microstructure and mechanical properties of nickel-based high-temperature alloys and their composite additively manufactured components. Additionally, common modeling methods and research progress in LPBF processes are discussed. Finally, a prospectus for the future development of LPBF-nickel-based alloys is proposed. |
| Key words: LPBF Ni-based high-temperature alloy microstructure tensile fatigue |
