Effect of strain rate on fracture reliability of Cu45Zr45Co10 amorphous alloy microwires by statistical analyses

doi:10.1016/j.jallcom.2021.162951

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Effect of strain rate on fracture reliability of Cu45Zr45Co10 amorphous alloy microwires by statistical analyses
	Su, Shuang 5,6; Ning, Zhiliang 5,6; Huang, Yongjiang 5,6; Yang, Tao 4; Wang, Keyan 5,6; Jiang, Minqiang 1,3; Sun, Jianfei 5,6; Jiang, Sida 2,5
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2022-03-25
卷号	898 页码:10
关键词	Amorphous alloy microwires Strain rate effect Fracture strength Fracture reliability Statistical analyses
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.162951
通讯作者	Huang, Yongjiang(yjhuang@hit.edu.cn) ; Jiang, Minqiang(mqjiang@imech.ac.cn) ; Jiang, Sida(jiangsida@hit.edu.cn)
英文摘要	The understanding of the fracture mechanism of amorphous alloys (AAs) is of importance for their engineering applications as advanced structural materials. In this study, a series of micro-tensions of Cu45Zr45Co10 AA microwires were conducted under different strain rates ranging from 5 x 10(-5) s(-1) to 1 x 10(-2) s(-1). It is found that all microwires fracture by shear cracking, but the shear fracture strengths exhibit pronounced rate-dependent uncertainties. Based on both lognormal and Weibull statistical analyses, the studied AA microwires reveal a positive rate-sensitivity of fracture strengths. However, increasing strain rates incurs the decrease in the fracture reliability. We demonstrate that the fracture reliability of AA microwires is dominated by a square root singularity of the characteristic lengths of shear offset on fracture surfaces, which satisfies linear elastic fracture mechanics. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Natural Science Foundation of China (NSFC)[52071118] ; Natural Science Foundation of China (NSFC)[51901057] ; Natural Science Foundation of China (NSFC)[52171154] ; China Postdoctoral Science Foundation[2019M661275] ; China Postdoctoral Science Foundation[2020T130030ZX] ; National Outstanding Youth Science Fund Project of NSFC[12125206]
WOS关键词	BULK METALLIC-GLASS ; COMPRESSIVE BEHAVIOR ; LOADING RATE ; STRENGTH ; SHEAR ; TRANSFORMATION ; GRAIN ; SIZE
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000749584800004
资助机构	Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; National Outstanding Youth Science Fund Project of NSFC
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/88438]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Huang, Yongjiang; Jiang, Minqiang; Jiang, Sida
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Harbin Inst Technol, Space Environm Simulat Res Infrastruct, Harbin 150001, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.City Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China 5.Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China 6.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
推荐引用方式 GB/T 7714	Su, Shuang,Ning, Zhiliang,Huang, Yongjiang,et al. Effect of strain rate on fracture reliability of Cu45Zr45Co10 amorphous alloy microwires by statistical analyses[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,898:10.
APA	Su, Shuang.,Ning, Zhiliang.,Huang, Yongjiang.,Yang, Tao.,Wang, Keyan.,...&Jiang, Sida.(2022).Effect of strain rate on fracture reliability of Cu45Zr45Co10 amorphous alloy microwires by statistical analyses.JOURNAL OF ALLOYS AND COMPOUNDS,898,10.
MLA	Su, Shuang,et al."Effect of strain rate on fracture reliability of Cu45Zr45Co10 amorphous alloy microwires by statistical analyses".JOURNAL OF ALLOYS AND COMPOUNDS 898(2022):10.