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| Ti2AlNb合金工程成形技术 |
| Engineering Forming Technology for Ti2AlNb Alloy |
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| DOI：10.3969/j.issn.1674-6457.2022.11.006 |
| 中文关键词: Ti2AlNb 缺口敏感性 疲劳性能 粉末冶金 |
| 英文关键词: Ti2AlNb notch sensitivity fatigue properties powder metallurgy |
| 基金项目:中国科学院稳定支持基础研究领域青年团队计划(YSBR–025) |
| Author Name | Affiliation | | LU Zheng-guan | Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China | | XU Lei | Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China | | WU Jie | Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China | | YANG Rui | Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| 中文摘要: |
| Ti2AlNb是一种具有低密度、较好强塑性匹配(23~650 ℃)和高温疲劳性能优异的航空航天材料，近30年来受到了广泛关注，尤其是国内研究人员围绕Ti2AlNb合金的工程化研究开展了大量工作。受限于Ti2AlNb金属间化合物的本征脆性和缺口敏感性，目前仍难找到稳定、高效和经济的Ti2AlNb复杂构件成形技术。接近工程化应用的成形技术主要包括热变形和粉末热等静压成形，面向工程应用的成形技术难题在于如何改善Ti2AlNb合金的均匀性。 |
| 英文摘要: |
| Ti2AlNb is an aerospace material with low density, good strength-ductility matching (23-650 ℃) and high temperature fatigue properties. In the past three decades, it has received extensive attention, especially in China, and a lot of work has been done on the engineering research of Ti2AlNb alloys. Due to the intrinsic brittleness and notch sensitivity of Ti2AlNb intermetallic compound, it is still difficult to find a stable, efficient and economical forming technology for Ti2AlNb complex components. The forming technologies close to engineering applications mainly include thermal deformation and powder hot isostaric pressing. The most critical challenge in Ti2AlNb engineering application is the improvement of homogeneity. |
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