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| Nb-Si 基超高温合金的研究进展 | |
| 引用本文： | 郑,蕾.Nb-Si 基超高温合金的研究进展[J].宇航材料工艺,2013,43(3). |
| 作者姓名： | 郑 蕾 |
| 作者单位： | 北京航空航天大学,北京,100191 |
| 摘 要： | Nb-Si基超高温合金由于熔点高、密度低和优良的高温强度等特点受到广泛关注,极具作为下一代高推重比航空发动机和超然冲压发动机的热端部件用材料的潜力.本文主要介绍了国内外在合金化、粉末冶金、定向凝固和热处理工艺对Nb-Si基合金组织和性能影响等方面的研究现状,并展望了其发展趋势. |
| 关 键 词： | Nb-Si 超高温合金 力学性能 热处理 |
Progress in Nb-Si Intermetallics Based Ultra-High Temperature Alloys |
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| Zheng Lei , Jia Lina , Zhang Hu , Xu Huibin.Progress in Nb-Si Intermetallics Based Ultra-High Temperature Alloys[J].Aerospace Materials & Technology,2013,43(3). | |
| Authors: | Zheng Lei Jia Lina Zhang Hu Xu Huibin |
| Institution: | Beihang University |
| Abstract: | Niobium-silicide intermetallics base ultra-high temperature alloys,have shown great potential for serving at the hot section on the next generation aero-engines and scramjet engines. Due to their high melting temperatures, low densities and excellent high-temperature strengths, In the present paper, we discuss the effects of directional solidification and heat treatment microstructures and properties of the alloying,powder metallurgy. The future development trends are also discussed. |
| Keywords: | Niobium-silicide Ultra-high temperature alloys Mechanical properties Heat treatment |
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