| 涡轮叶片Bi─Sn致脆研究 |
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| 引用本文： | 钟培道,闫海.涡轮叶片Bi─Sn致脆研究[J].材料工程,1996(9). |
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| 作者姓名： | 钟培道 闫海 |
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| 作者单位： | 北京航空材料研究院 |
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| 摘 要： | 研究了Ｋ４０５高温合金精铸涡轮叶片断裂失效的性质与原因。结果表明，叶片制造过程中表面遭受Ｂｉ－Ｓｎ低熔点合金污染，在使用温度与拉应力作用下出现脆性开裂，从而导致早期疲劳断裂失效。
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| 关 键 词： | 镍基高温合金，失效，致脆 |
Study of Failure by Bi-Sn Induced Embrittlement on Turbine Blade |
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| Zhong Peidao,Yan Hai,.Study of Failure by Bi-Sn Induced Embrittlement on Turbine Blade[J].Journal of Materials Engineering,1996(9). |
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| Authors: | Zhong Peidao Yan Hai |
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| Abstract: | This paper represents the characteristics and cause for the fracture failure on the turbine blade,which is made of K405 Ni-base superalloy.The results show that the blade fatigue failure is due to the embroilment,which is induced by the contamination of Bi-Sn low melting point alloy on the blade surface during the manufacturing process of blade,under the effects of the service temperature and stress. |
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| Keywords: | s:Ni-base superalloy failure embrittlement |
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