Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate

doi:10.1016/j.matlet.2021.131071

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	Development of a new ratcheting fatigue life prediction model of a nickel-based superalloy based on ratcheting strain rate
	Kong, Weiwen 1,2; Nian, Taojie 1,2; Yuan, Chao 2
刊名	MATERIALS LETTERS
	2022-02-01
卷号	308 页码:4
关键词	Metals and alloys Fatigue Ratcheting strain rate Fatigue life prediction model
ISSN号	0167-577X
DOI	10.1016/j.matlet.2021.131071
通讯作者	Yuan, Chao(ychao@imr.ac.cn)
英文摘要	The 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.
资助项目	National Science and Technology Major Project of China[2017-VI-0018-0090]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000711380300006
资助机构	National Science and Technology Major Project of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167143]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yuan, Chao
作者单位	1.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
推荐引用方式 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.