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Effects of microstructure on the creep properties of a new Ni-Co base superalloy
Xu, L; Sun, CQ; Cui, CY; Zhang, C; Cui, CY (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-12-15
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume678Pages:110-115
AbstractThe effects of microstructure on the creep behavior in a new developed Ni-Co base superalloy were investigated and two microstructures were obtained by different heat treatments. The results show that the air cooling microstructure, consisting of large spherical gamma' and small spherical gamma', resulted in a slow creep rate and small creep strain. While the slow cooling microstructure, consisting of large flowery gamma' and small spherical gamma', resulted in a fast creep rate and large creep strain. The gamma channel and gamma' morphology are two main factors for these differences, the large gamma channel and flowery gamma' in the slow cooling microstructure causing the dislocations slip easily in the gamma matrix and cut into the gamma' precipitates with low stress.
description.department[xu, l. ; sun, c. q. ; zhang, c.] shenyang inst engn, 18 puchang rd, shenyang 110136, peoples r china ; [xu, l. ; cui, c. y.] chinese acad sci, inst met res, superalloys div, 72 wenhua rd, shenyang 110016, peoples r china
KeywordMicrostructure Creep Behavior Superalloy
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationHigh Technology Research and Development Program of China [2014AA041701]; National Natural Science Foundation of China (NSFC) [51171179, 51271174, 51331005, 51671189, 11332010]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76152
Collection中国科学院金属研究所
Corresponding AuthorCui, CY (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Xu, L,Sun, CQ,Cui, CY,et al. Effects of microstructure on the creep properties of a new Ni-Co base superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,678:110-115.
APA Xu, L,Sun, CQ,Cui, CY,Zhang, C,&Cui, CY .(2016).Effects of microstructure on the creep properties of a new Ni-Co base superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,678,110-115.
MLA Xu, L,et al."Effects of microstructure on the creep properties of a new Ni-Co base superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 678(2016):110-115.
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