Shear band evolution and mechanical behavior of cold-rolled Zr-based amorphous alloy sheets: An in-situ study

doi:10.1016/j.jmst.2023.09.022

IMR OpenIR

	Shear band evolution and mechanical behavior of cold-rolled Zr-based amorphous alloy sheets: An in-situ study
	Zhang, C. Y.1; Zhu, Z. W.1,2; Li, S. T.2; Wang, Y. Y.1; Li, Z. K.1,2; Li, H.1,2; Yuan, G.3; Zhang, H. F.1,2
通讯作者	Zhu, Z. W.(zhuzw@mail.neu.edu.cn)
	2024-05-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	181 页码:115-127
摘要	Cold rolling process can regulate the microstructure and mechanical properties of amorphous alloys, but it is still a challenging task to reveal their microscopic mechanism. Here, we designed an in-situ SEM observation device for the cold rolling process of amorphous alloy, and visually observed the formation and evolution of shear bands during single-pass and multi-pass rolling process of the Zr 55 Cu 30 Al 10 Ni 5 amorphous alloy sheets. It is found that the evolution process of shear bands in the rolling process of amorphous alloy shows heritability, which is mainly reflected in two aspects: one is that the shear band formation pattern in the single-pass rolling process is more inclined to inherit the previous shear band formation pattern; the other is that the shear deformation is more likely to occur in the pre-existing shear bands in the multi-pass rolling process. This rule can be used to guide the controlled generation of shear bands in amorphous alloys. Moreover, we emphasized the importance of pre-existing shear band orientations and systematically investigated the mechanical behavior of the amorphous alloys with pre-existing shear bands by in-situ SEM observation. It is found that the mechanical properties of the as-rolled amorphous alloys are determined by the competition between the work-softening of the preexisting shear band itself and the work-hardening caused by the blocking effect of the pre-existing shear bands on the shear deformation. Based on this, we enhance the tensile fracture strength and the tensile ductility of the amorphous alloy by adjusting the orientation of the pre-existing shear bands parallel to the tensile stress axis so that the pre-existing shear bands prevent the linear propagation and destruction of the new shear bands. (c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Amorphous alloy Cold rolling Shear band Mechanical behavior In-situ study Plasticity
资助者	National Natural Science Foundation of China ; Space Application System of China Manned Space Program
DOI	10.1016/j.jmst.2023.09.022
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52074257] ; Space Application System of China Manned Space Program[YYMT1201-EXP08]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001125535700001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：13[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/321006/182937
专题	中国科学院金属研究所
通讯作者	Zhu, Z. W.
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Northeastern Univ, State Key Lab Rolling & Automat RAL, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Zhang, C. Y.,Zhu, Z. W.,Li, S. T.,et al. Shear band evolution and mechanical behavior of cold-rolled Zr-based amorphous alloy sheets: An in-situ study[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,181:115-127.
APA	Zhang, C. Y..,Zhu, Z. W..,Li, S. T..,Wang, Y. Y..,Li, Z. K..,...&Zhang, H. F..(2024).Shear band evolution and mechanical behavior of cold-rolled Zr-based amorphous alloy sheets: An in-situ study.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,181,115-127.
MLA	Zhang, C. Y.,et al."Shear band evolution and mechanical behavior of cold-rolled Zr-based amorphous alloy sheets: An in-situ study".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 181(2024):115-127.