In-situ TEM investigation of structural transformation from LEDS to twin in fatigued Cu single crystal during annealing

doi:10.1080/14786435.2020.1807070

IMR OpenIR

	In-situ TEM investigation of structural transformation from LEDS to twin in fatigued Cu single crystal during annealing
	Li, P.; Kong, L. W.; Zhang, Z. X.; Zhao, J.; Du, C. C.; Huang, J. Y.; Zhang, Z. F.
	2020-12-16
发表期刊	PHILOSOPHICAL MAGAZINE
卷号	100 期号:24 页码:3070-3091
摘要	Low-energy dislocation structure is one classical self-organised dislocation pattern, among which persistent slip band (PSB) ladders is the most representative. Periodically distributed PSB ladders consist of two phases: matrix phase and pattern phase. In the new two-phase model, the appearance of pattern phase results in the softening of PSBs with lower elastic constant. The formation of PSB ladders reflects two kinds of dynamic equilibriums: (i) bowing out and annihilation between unlike screw dislocations; (ii) multiplication and annihilation between unlike edge dislocations in the rung. Subsequently, in-situ annealing experiments indicate that most of the dislocations are annihilated and a few dislocations rearrange to result in the nucleation and growth of the twin. In a word, both the evolution of dislocation patterns and the transition from LEDS to twin structures are the process of energy redistribution. Controlling the stored energy per unit area will effectively improve the formation of distribution of defects, which will benefit to design the metallic materials based on the defect-engineering strategy.
DOI	10.1080/14786435.2020.1807070
WOS记录号	WOS:000561073500001
引用统计	被引频次：1[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/321006/155681
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Li, P.,Kong, L. W.,Zhang, Z. X.,et al. In-situ TEM investigation of structural transformation from LEDS to twin in fatigued Cu single crystal during annealing[J]. PHILOSOPHICAL MAGAZINE,2020,100(24):3070-3091.
APA	Li, P..,Kong, L. W..,Zhang, Z. X..,Zhao, J..,Du, C. C..,...&Zhang, Z. F..(2020).In-situ TEM investigation of structural transformation from LEDS to twin in fatigued Cu single crystal during annealing.PHILOSOPHICAL MAGAZINE,100(24),3070-3091.
MLA	Li, P.,et al."In-situ TEM investigation of structural transformation from LEDS to twin in fatigued Cu single crystal during annealing".PHILOSOPHICAL MAGAZINE 100.24(2020):3070-3091.