Low cycle fatigue behaviors of CrCoNi medium-entropy alloy with different grain sizes

doi:10.1016/j.ijfatigue.2023.108105

IMR OpenIR

	Low cycle fatigue behaviors of CrCoNi medium-entropy alloy with different grain sizes
	Wang, Yujie 1; Yu, Tao 1; Wang, Zhiguang 1; Li, Linlin 1; Yuan, Guo 1; Zhang, Zhefeng 2,3
通讯作者	Li, Linlin(lill@ral.neu.edu.cn)
	2024-03-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	180 页码:7
摘要	Low-cycle fatigue behaviors of CrCoNi medium entropy alloy with different grain sizes were investigated. It is found that grain refinement improved deformation homogeneity to delay fatigue crack initiation by dispersing slip bands and fatigue damage. Yet, the increase in grain size promoted deformation twinning to retard fatigue crack growth by dissipating plastic work. With enough plastic deformation accumulated, extensive dislocation slip and deformation twinning significantly refined the grains localized near fatigue cracks. The grain refinement could trade off the cyclic softening and help to retard fatigue crack growth. These findings indicate that refined grains with certain twinning ability would extend the fatigue life of CrCoNi alloy the most and suppress cyclic softening at the same time.
关键词	Medium-entropy alloy Low-cycle fatigue Grain size Deformation twinning Planar slip
资助者	National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities
DOI	10.1016/j.ijfatigue.2023.108105
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[52371101] ; Fundamental Research Funds for the Central Universities[N2107008]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001141661000001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183578
专题	中国科学院金属研究所
通讯作者	Li, Linlin
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yujie,Yu, Tao,Wang, Zhiguang,et al. Low cycle fatigue behaviors of CrCoNi medium-entropy alloy with different grain sizes[J]. INTERNATIONAL JOURNAL OF FATIGUE,2024,180:7.
APA	Wang, Yujie,Yu, Tao,Wang, Zhiguang,Li, Linlin,Yuan, Guo,&Zhang, Zhefeng.(2024).Low cycle fatigue behaviors of CrCoNi medium-entropy alloy with different grain sizes.INTERNATIONAL JOURNAL OF FATIGUE,180,7.
MLA	Wang, Yujie,et al."Low cycle fatigue behaviors of CrCoNi medium-entropy alloy with different grain sizes".INTERNATIONAL JOURNAL OF FATIGUE 180(2024):7.