Nb-Si基超高温合金研究进展

韩国明; 李飞; 孙宝德

doi:10.15980/j.tzzz.2018.10.008

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Nb-Si基超高温合金研究进展
Research Progress in Ultrahigh Temperature Nb-Si Based Alloys
2018年38卷第10期页码：1071-1075
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.10.008

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[1]韩国明,李飞,孙宝德.Nb-Si基超高温合金研究进展[J].特种铸造及有色合金,2018,38(10):1071-1075.

Han Guoming, Li Fei, Sun Baode. Research Progress in Ultrahigh Temperature Nb-Si Based Alloys[J]. Special Casting & Nonferrous Alloys, 2018,38(10):1071-1075.
[1]韩国明,李飞,孙宝德.Nb-Si基超高温合金研究进展[J].特种铸造及有色合金,2018,38(10):1071-1075. DOI： 10.15980/j.tzzz.2018.10.008.

Han Guoming, Li Fei, Sun Baode. Research Progress in Ultrahigh Temperature Nb-Si Based Alloys[J]. Special Casting & Nonferrous Alloys, 2018,38(10):1071-1075. DOI： 10.15980/j.tzzz.2018.10.008.

摘要

Nb-Si基超高温合金具有高熔点、低密度和良好的高温力学性能

目标使用温度达到1 200

450℃

有望成为新一代高推重比航空发动机热端部件最有潜力的候选材料。综述了该合金的成分设计、组织调控、性能表征及其加工制备技术

重点介绍了该合金成分-组织-性能之间的关联

探讨了定向凝固技术制备Nb-Si合金涡轮叶片存在的问题。

Abstract

With higher melting point

relatively lower densities and attractive high temperature strength

Nb-Si based ultrahigh temperature alloys show great promise for application as the next generation turbine airfoil materials with the operating temperature of 1 200

450℃.The composition design

microstructure regulation

characterization and processing technologies were reviewed

focusing on the relationship among compositions

microstructure and properties.The shortcoming of directionally solidified Nb-Si based superalloys was expounded.