Accelerating structural relaxation of shear band at ambient conditions through cryogenic thermal-cycling

doi:10.1007/s40843-023-2759-9

IMR OpenIR

	Accelerating structural relaxation of shear band at ambient conditions through cryogenic thermal-cycling
	Wei, Yufeng 1; Pan, Jie 1,2; Sun, Yonghao 3,4; Li, Ning 1; Zhang, Cheng 1; Wang, Weihua 3,4; Liu, Lin 1
通讯作者	Pan, Jie(jpan@hust.edu.cn) ; Sun, Yonghao(ysun58@iphy.ac.cn) ; Liu, Lin(lliu2000@mail.hust.edu.cn)
	2024-02-22
发表期刊	SCIENCE CHINA-MATERIALS
ISSN	2095-8226
页码	9
摘要	Cryogenic thermal-cycling (CTC) is a promising method for the rejuvenation of metallic glasses (MGs). Although seemingly arbitrary, the direction of energy change in MGs following CTC sometimes results in relaxation rather than rejuvenation. By demonstrating enthalpy relaxation in a shear band (SB) and enthalpy rejuvenation in the metallic-glass matrix, the current work demonstrates that the initial state of the specimen matters. Micro-hardness, nano-indentation loading curves, and the shapes of indents all support the bidirectional trends. Notably, after subjecting the specimen to 100 cryogenic thermal-cycles, the enthalpy and hardness tend to converge into an equilibrium value. It is discovered that CTC can accelerate the structural relaxation of SB at room temperature, a phenomenon that thermal annealing at the upper temperature (353 K) of CTC cannot achieve. Additionally, the experimental results have been elucidated by adapting the free-volume model. The work provides new insights into the functionalities of CTC and illuminates the initial state of the metallic-glass sample upon reversing the direction of enthalpy change.
关键词	metallic glasses cryogenic thermal-cycling rejuvenation relaxation energy state
资助者	National Natural Science Foundation of China ; Key R&D Program of Hubei ; Basic Research Support Program of Huazhong University of Science and Technology ; Young Elite Scientists Sponsorship Program by China Association for Science and Technology
DOI	10.1007/s40843-023-2759-9
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52022100] ; National Natural Science Foundation of China[52192604] ; National Natural Science Foundation of China[51971097] ; National Natural Science Foundation of China[51971239] ; National Natural Science Foundation of China[92263103] ; Key R&D Program of Hubei[2022BAA023] ; Basic Research Support Program of Huazhong University of Science and Technology[5003110121] ; Young Elite Scientists Sponsorship Program by China Association for Science and Technology
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001172655900002
出版者	SCIENCE PRESS
引用统计	被引频次：4[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/321006/184796
专题	中国科学院金属研究所
通讯作者	Pan, Jie; Sun, Yonghao; Liu, Lin
作者单位	1.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mold Technol, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
推荐引用方式 GB/T 7714	Wei, Yufeng,Pan, Jie,Sun, Yonghao,et al. Accelerating structural relaxation of shear band at ambient conditions through cryogenic thermal-cycling[J]. SCIENCE CHINA-MATERIALS,2024:9.
APA	Wei, Yufeng.,Pan, Jie.,Sun, Yonghao.,Li, Ning.,Zhang, Cheng.,...&Liu, Lin.(2024).Accelerating structural relaxation of shear band at ambient conditions through cryogenic thermal-cycling.SCIENCE CHINA-MATERIALS,9.
MLA	Wei, Yufeng,et al."Accelerating structural relaxation of shear band at ambient conditions through cryogenic thermal-cycling".SCIENCE CHINA-MATERIALS (2024):9.