Fracture Mode of a Ni-Based Single Crystal Superalloy Containing Topologically Close-Packed Phases at Ambient Temperature

被引：24

作者：

Shi, Qianying ^{[1
]}

Ding, Xianfei ^{[2
]}

Chen, Jingyang ^{[1
]}

Zhang, Xiaona ^{[3
]}

Zheng, Yunrong ^{[2
]}

Feng, Qiang ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China

[3] Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 04期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

MU PHASE; STABILITY; CREEP; PRECIPITATION; BEHAVIOR;

D O I：

10.1007/s11661-014-2190-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The fracture mode of an experimental Ni-based single crystal superalloy containing topologically close-packed phases at ambient temperature was investigated by a simple and practical testing method. Microstructural investigation and compositional analyses were performed on the matching fracture surfaces of a small scale specimen after the impact experiment. It is suggested that the weak TCP/gamma' interface coherency resulted in the interfacial decohesion, which was the main fracture mode for the investigated superalloy under the impact load at ambient temperature.

引用

页码：1665 / 1669

页数：5

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