梁啸宇,张磊,林峰.电子束粉末床熔融制备钛铝基金属间化合物研究进展[J].精密成形工程,2022,14(11):81-97.
LIANG Xiao-yu,ZHANG Lei,LIN Feng.Research Progress of TiAl Intermetallic Fabricated by Electron Beam Powder Bed Fusion[J].Journal of Netshape Forming Engineering,2022,14(11):81-97. |
| 电子束粉末床熔融制备钛铝基金属间化合物研究进展 |
| Research Progress of TiAl Intermetallic Fabricated by Electron Beam Powder Bed Fusion |
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| DOI：10.3969/j.issn.1674-6457.2022.11.009 |
| 中文关键词: 金属间化合物 钛铝 增材制造 电子束粉末床熔融 电子束选区熔化 |
| 英文关键词: intermetallic TiAl additive manufacturing (AM) electron beam powder bed fusion (EB-PBF) electron beam melting (EBM) |
| 基金项目:国家科技重大专项(J2019–VII–0016–0156) |
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| 中文摘要: |
| 钛铝基金属间化合物是一种理想的高温结构材料，但因存在室温塑性差、加工困难等不足而限制了其发展与应用。电子束粉末床熔融(Electron Beam Powder Bed Fusion, EB−PBF)技术能够实现近净成形，其加工中的低热应力特点适宜脆性材料的制备，是近年来广受关注的新型钛铝基金属间化合物成形方法。对用电子束粉末床熔融制备的钛铝基金属间化合物进行了介绍，并对近年来发表的以EB−PBF钛铝材料为研究对象的相关文献进行了综述。从工艺、后处理和性能表征等角度对目前的研究现状进行了分析总结，并对未来的研究工作提出了展望。 |
| 英文摘要: |
| Titanium aluminide (TiAl) intermetallic is an ideal high-temperature structural material, but its development and application are limited due to poor room temperature ductility and the resulted processing difficulties. Electron beam powder bed fusion (EB-PBF) technology can achieve near-net shaping. The low thermal stress state during processing makes it suitable for the fabrication of brittle materials. It is a new TiAl intergeneric forming method which has attracted much attention in recent years. In this work, the TiAl intermetallic fabricated by EB-PBF was briefly introduced, and the related literature published in recent years with EB-PBF TiAl materials as the research object was reviewed. The research status was analyzed and summarized from the perspectives of process, post-processing, performance characterization, etc. Future research work regarding EB-PBF TiAl was also prospected. |
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