Creep Mechanisms of a Ni-Co-Based-Wrought Superalloy with Low Stacking Fault Energy

被引：23

作者：

Tian, Chenggang ^{[1
]}

Xu, Ling ^{[1
]}

Cui, Chuanyong ^{[1
]}

Sun, Xiaofeng ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2015年 / 46A卷 / 10期

基金：

中国国家自然科学基金;

关键词：

SINGLE-CRYSTAL SUPERALLOYS; GAMMA-PHASE; DEFORMATION MECHANISMS; MICROSTRUCTURE; STRENGTH; SHEARING; DISLOCATIONS; BEHAVIOR; STRESS; MAP;

D O I：

10.1007/s11661-015-2818-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to study the influences of stress and temperature on the creep deformation mechanisms of a newly developed Ni-Co-based superalloy with low stacking fault energy, creep experiments were carried out under a stress range of 345 to 840 MPa and a temperature range of 923 K to 1088 K (650 A degrees C to 815 A degrees C). The mechanisms operated under the various creep conditions were identified and the reasons for their transformation were well discussed. A deformation mechanism map under different creep conditions was summarized, which provides a qualitative representation of the operative creep mechanisms as a function of stress and temperature.

引用

页码：4601 / 4609

页数：9

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