Anisotropy of compression creep strength in a nickel-base single crystal superalloy

被引：0
|
作者：
Sha, YH [1 ]
Zuo, LA
Zhang, JH
Xu, YB
Hu, ZQ
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
[2] Chinese Acad Sci, State Key Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2001年 / 37卷 / 11期
关键词：
nickel-base single crystal superalloy; compression creep strength; anisotropy; threshold stress;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The anisotropy of compression creep strength in a nickel-base single crystal superalloy was investigated. The results showed that the anisotropy of compression creep strength depends on temperature, which decreases in the following order: 1023 K-[110], [111], [001]; 1123 K-[110], [001], [111], while the anisotropy between [001] and [110] weakens as creep rate is lower than 8x10(-5) s(-1); 1223 K-[110], [001], [111], but the anisotropy between [001] and [110] becomes very weak. Through the analysis of creep threshold stress, the controlling creep mechanisms were determined, and by which the anisotropy of compression creep strength was explained.
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页码：1142 / 1146
页数：5
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