Effect of temperature and stress on high temperature creep behavior of Ni3Al-based single crystal superalloy

被引：0
|
作者：
Cheng Chang [1 ]
Liwu Jiang [1 ]
Meiling Wu [2 ]
Shusuo Li [3 ]
Yafang Han [2 ]
机构：
[1] National Center for Materials Service Safety, University of Science and Technology Beijing
[2] Beijing Institute of Aeronautical Materials
[3] Research Institute of Aero-engine, Beihang University
来源：
ProgressinNaturalScience:MaterialsInternational | 2022年 / 32卷 / 02期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TG132.3 [特种热性质合金];
学科分类号：
摘要：
The creep behavior and dislocations mechanism of the Ni3Al-based single crystal alloy IC6 SX with [001] orientation were investigated under the testing conditions of 1100℃/137 MPa,1100℃/120 MPa and 1070℃/137 MPa.It was observed that the temperature and stress had a significant effect on the high temperature creep life of the single crystal alloy.As the temperature was reduced from 1100℃ to 1070 ℃,the creep life increased from65.07 h to 313.8 h.As the stress was reduced to 120 MPa,the creep life increased to 243.3 h.Under the high temperature and low stress condition the dislocations entered the γ’ phase by climbing caused by the atomic diffusion,instead of slipping.
引用
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页码：267 / 271
页数：5
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