| 增材制造TiAl基合金的研究进展 |
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| 引用本文： | 王虎,赵琳,彭云,王艳杰,田志凌.增材制造TiAl基合金的研究进展[J].粉末冶金技术,2022,40(2):110-117. |
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| 作者姓名： | 王虎 赵琳 彭云 王艳杰 田志凌 |
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| 作者单位： | 1.钢铁研究总院先进钢铁流程及材料国家重点实验室, 北京 100081 |
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| 基金项目： | 国家重点研发计划资助项目（2017YFB1103300）；河北省高等学校科学技术研究项目（QN2020256）；北华航天工业学院青年基金资助项目（KY202103） |
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| 摘 要： | TiAl基合金具有优异的高温性能，是一种极具竞争力的新型轻质高温结构材料，在汽车、军工、航空航天等领域具有广阔的发展潜力和应用前景。然而，TiAl基合金室温脆性较大，成形困难，是阻碍其发展与应用的主要瓶颈之一。增材制造基于“离散+堆积”的成形思想，以激光、电子束、电弧等作为高能热源，通过熔化丝材或者粉末，逐层堆积实现零件的近净成形，是TiAl基合金最前沿、最具潜力的成形技术。本文主要概述了激光增材制造、电子束选区熔化、电弧增材制造TiAl基合金的研究进展，并展望了增材制造TiAl基合金的研究方向。
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| 关 键 词： | TiAl基合金 激光增材制造 电子束选区熔化 电弧增材制造 |
| 收稿时间： | 2020-10-13 |
Research progress of TiAl-based alloys fabricated by additive manufacturing |
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| Affiliation: | 1.State Key Laboratory of Advanced Steel Processes and Products, Central Iron & Steel Research Institute, Beijing 100081, China2.College of Materials Engineering, North China Institute of Aerospace Engineering, Langfang 065000, China |
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| Abstract: | TiAl-based alloys have the excellent high-temperature properties as a highly competitive new lightweight high-temperature structural material, showing the broad development prospect and application potential in the automotive, military, aerospace, and other fields. However, because of the nature and inherent brittleness, the TiAl-based alloys are difficult to form, which inhibits the further development and the practical application. The additive manufacturing based on the forming idea of "discrete + accumulation" represents the most advanced and potential forming technology for the TiAl-based alloys, which uses the laser, electron beam, and arc as the high energy heat source to melt wires or powders and then stack them layer by layer. The research progress of TiAl-based alloys prepared by laser additive manufacturing, electron beam selective melting, and wire and arc additive manufacturing was summarized in this paper, and the future research direction of the TiAl-based alloys fabricated by additive manufacturing was prospected. |
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