Effects of temperature and frequency on cyclic deformation behaviours of Cu single crystals

doi:10.1080/14786435.2023.2220092

IMR OpenIR

	Effects of temperature and frequency on cyclic deformation behaviours of Cu single crystals
	Kong, L. W.1; Xing, Z. B.1; Shu, Y.1; Duan, Q. Q.2; Zhang, Z. F.2; Li, P.1,2
通讯作者	Li, P.(pengli@ysu.edu.cn)
	2023-06-08
发表期刊	PHILOSOPHICAL MAGAZINE
ISSN	1478-6435
页码	22
摘要	Temperature and frequency are significant extrinsic factors that influence the cyclic deformation behaviour of face-centred cubic crystal (fcc) single crystals. For Cu single crystals, an increase in temperature causes the disappearance of the plateau region in the cyclic stress-strain (CSS) curves and a significant decrease in the saturation resolved shear stress at low strain amplitudes. This is attributed to the enlargement of the space between Persistent Slip Band (PSB) ladders, resulting in a lower volume fraction of the rungs in PSBs, leading to a lower saturation shear stress. Conversely, an increase in frequency does not affect the appearance of the plateau behaviour in CSS curves, but it slightly increases the corresponding plateau stress. This is because a higher frequency increases the probability of interaction between edge dislocations, leading to an increase in the local flow stress in the rungs, ultimately resulting in an increment of the saturation stress.
关键词	Cu single crystal cyclic deformation temperature frequency dislocation configurations
DOI	10.1080/14786435.2023.2220092
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001002520100001
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178136
专题	中国科学院金属研究所
通讯作者	Li, P.
作者单位	1.Yanshan Univ, Ctr High Pressure Sci, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Kong, L. W.,Xing, Z. B.,Shu, Y.,et al. Effects of temperature and frequency on cyclic deformation behaviours of Cu single crystals[J]. PHILOSOPHICAL MAGAZINE,2023:22.
APA	Kong, L. W.,Xing, Z. B.,Shu, Y.,Duan, Q. Q.,Zhang, Z. F.,&Li, P..(2023).Effects of temperature and frequency on cyclic deformation behaviours of Cu single crystals.PHILOSOPHICAL MAGAZINE,22.
MLA	Kong, L. W.,et al."Effects of temperature and frequency on cyclic deformation behaviours of Cu single crystals".PHILOSOPHICAL MAGAZINE (2023):22.