Influence of Heat Treatments on Crack Propagation Rates of FGH96 P/M Superalloys

被引：0

作者：

Wang Pu ^{[1
]}

Dong Jianxin

Zhang Yiwen ^{[2
]}

Xie Xishan

机构：

[1] Univ Sci & Technol Beijing, High Temp Mat Res Grp, Beijing 100083, Peoples R China

[2] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷 / 01期

关键词：

FGH96 PM superalloy; crack propagation rate; heat treatment;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack propagation rates of FGH96 P/M superalloys with different heat treatments were tested and compared under fatigue/creep interaction at 650 degrees C in air. Influence of heat treatments on the crack propagation rates of FGH96 P/M superalloys was investigated. The results indicate that the crack propagation rates were decreased when increasing the solid solution temperature or salt bath temperature; the effect of solid solution temperature was greater than that of salt bath temperature. Lower aging temperature and shorter aging time also delayed the crack propagation rates; the effect of the aging temperature was greater than that of the aging time. In addition, the crack propagation rates were increased with the dwelling time prolonging, and its effect decreased with the aging temperature increasing.

引用

页码：157 / 161

页数：5

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