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Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy
Ge, Zhicheng1,2; Xie, Guang1; Lu, Yuzhang1; Wang, Dong1; Wang, Li1; Zheng, Wei1; He, Yufeng1,2; Lou, Langhong1; Zhang, Jian1
Corresponding AuthorXie, Guang(gxie@imr.ac.cn) ; Zhang, Jian(jianzhang@imr.ac.cn)
2022-01-13
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume831Pages:9
AbstractThe influence of Ta on the intermediate temperature creep behavior and deformation mechanism in a Ni-based single crystal superalloy has been investigated at 760 degrees C and 750 MPa. The results indicate that there is a sig-nificant increasing of creep rupture life after the addition of Ta. Lattice misfit between gamma and gamma ' phase at 760 degrees C increases in the Ta-containing alloy. Microstructure showed that the formation of stacking faults in the gamma matrix and denser dislocation network at the gamma/gamma ' interfaces caused by Ta addition are found during the primary creep stage. And a large amount of stacking fault locks which act as an important pattern in the strengthening generate in the gamma ' precipitates, resulting in a lower steady state creep rate and longer steady state creep life in Ta-containing alloy. And possible formation mechanism of the stacking fault locks is also discussed.
KeywordTa Single crystal superalloy Creep Stacking fault lock Lattice misfit
DOI10.1016/j.msea.2021.142160
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000710160600001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166665
Collection中国科学院金属研究所
Corresponding AuthorXie, Guang; Zhang, Jian
Affiliation1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Ge, Zhicheng,Xie, Guang,Lu, Yuzhang,et al. Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,831:9.
APA Ge, Zhicheng.,Xie, Guang.,Lu, Yuzhang.,Wang, Dong.,Wang, Li.,...&Zhang, Jian.(2022).Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,831,9.
MLA Ge, Zhicheng,et al."Influence of Ta on the intermediate temperature creep behavior of a single crystal superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 831(2022):9.
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