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Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate
Kong, Weiwen1,2; Nian, Taojie1,2; Yuan, Chao2
Corresponding AuthorYuan, Chao(ychao@imr.ac.cn)
2022-02-01
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume308Pages:4
AbstractThe stress-controlled low cycle fatigue and ratcheting fatigue behaviors of a nickel-based superalloy were proposed under a series of symmetric and asymmetric cyclic loadings at 650 degrees C to explore the effects of stress amplitude and mean stress on fatigue life. The results show that ratcheting strain increases with cycle numbers increasing. Ratcheting strain rate curves exhibit three different stages including deceleration, steady state and acceleration growth stage. A fatigue life prediction model based on the ratcheting strain rate considering stress amplitude and mean stress was conducted to predict the fatigue life. The predicted fatigue life agrees with the measured fatigue life very well, and all the data points are located in 1.25X scatter band based on the model.
KeywordMetals and alloys Fatigue Ratcheting strain rate Fatigue life prediction model
Funding OrganizationNational Science and Technology Major Project of China
DOI10.1016/j.matlet.2021.131071
Indexed BySCI
Language英语
Funding ProjectNational Science and Technology Major Project of China[2017-VI-0018-0090]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000711380300006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167144
Collection中国科学院金属研究所
Corresponding AuthorYuan, Chao
Affiliation1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Kong, Weiwen,Nian, Taojie,Yuan, Chao. Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate[J]. MATERIALS LETTERS,2022,308:4.
APA Kong, Weiwen,Nian, Taojie,&Yuan, Chao.(2022).Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate.MATERIALS LETTERS,308,4.
MLA Kong, Weiwen,et al."Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate".MATERIALS LETTERS 308(2022):4.
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