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Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C
Liu, Liu1,2; Meng, Jie2; Liu, Jinlai2; Zhang, Haifeng1,3; Sun, Xudong1; Zhou, Yizhou2
Corresponding AuthorMeng, Jie(jmeng@imr.ac.cn)
2018-09-12
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume734Pages:1-6
AbstractLow cycle fatigue behaviors of a 3Re Ni-base single crystal superalloy with the [001] and [011] orientations have been investigated. At 760 degrees C, both the [001] and [011] specimens fracture along crystallographic planes. However, the results also indicate a large difference in fatigue deformation behaviors of these two oriented specimens, which is reflected in different deformation mechanisms. For the cyclic stability behavior of the [001] specimens, uneven cross-slip and tangled dislocations and continuous stacking faults cause local stress concentration in the matrix and have an influence on work hardening, while the stress concentration is reduced by dislocation pairs and stacking faults shearing gamma' phases. With respect to the [011] specimens, high density matrix dislocations, parallel dislocations and secondary cracks increase resistance to dislocation movement, resulting in cyclic hardening. We discovered continuous stacking faults that have been rarely reported in the low cycle fatigue. Also, these findings might bring about substantial insights that fatigue fracture and deformation mechanisms are responsible for low cycle fatigue anisotropy at intermediate temperature.
KeywordSingle crystal superalloy Low cycle fatigue Anisotropy Deformation mechanism
Funding OrganizationNational Natural Science Foundation of China ; Shenyang Science and Technology Project
DOI10.1016/j.msea.2018.07.078
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[5160119] ; Shenyang Science and Technology Project[17-101-2-00]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000445993900001
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129604
Collection中国科学院金属研究所
Corresponding AuthorMeng, Jie
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Liu,Meng, Jie,Liu, Jinlai,et al. Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,734:1-6.
APA Liu, Liu,Meng, Jie,Liu, Jinlai,Zhang, Haifeng,Sun, Xudong,&Zhou, Yizhou.(2018).Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,734,1-6.
MLA Liu, Liu,et al."Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 734(2018):1-6.
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