Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates

doi:10.3390/ma13122861

IMR OpenIR

	Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates
	Li, Wenqing 1,2; Geng, Tieqiang 2; Ge, Shaofan 1,2; Zhu, Zhengwang 2; Zhang, Long 2; Li, Zhengkun 2; Fu, Huameng 2; Zhang, Hongwei 2; Li, Hong 2; Wang, Aimin 2; Zhang, Haifeng 2
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
	2020-06-01
发表期刊	MATERIALS
卷号	13 期号:12 页码:14
摘要	The strain rate effect on the mechanical behavior of amorphous alloys has aroused general interest. Most studies in this area have focused on quasi-static and high strain-rate compressive deformations. However, experimental results have been few, or even non-existent, under a moderate strain-rate loading. This article extends the traditional split Hopkinson pressure bar (SHPB) technique to characterize compressive deformation of an amorphous alloy at medium strain rates. The compressive behavior of Zr(65.25)Cu(21.75)Al(8)Ni(4)Nb(1)amorphous alloy shows a negative strain rate effect on the yield strength with a quasi-static, moderate to high strain-rate range, and the fracture angle increases from 44 degrees at 10(-5)s(-1)to 60 degrees at 4000 s(-1)as strain rate increases(.)Herein, we introduce a modified cooperative shear model to describe the compressive behavior of the current amorphous alloy under a broad strain rate range. The model predicts that the normalized yield strength will linearly descend with logarithmic strain rate when the strain rate is less than a critical strain rate, however, which rapidly decreases linearly with the square of the strain rate at high strain rates. The predicted data of the model are highly consistent with the current experimental results. These findings provide support for future engineering applications of amorphous alloys.
关键词	amorphous alloy strain rate yield strength free volume thermal softening SHPB
资助者	National Key Research and Development Program ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Science and Technology on Transient Impact Laboratory ; LiaoNing Revitalization Talents Program ; Shenyang Amorphous Metal Manufacturing Co., Ltd.
DOI	10.3390/ma13122861
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program[2018YFB0703402] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[U1738101] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Science and Technology on Transient Impact Laboratory[6142606192208] ; LiaoNing Revitalization Talents Program[XLYC1802078] ; LiaoNing Revitalization Talents Program[XLYC1807062] ; Shenyang Amorphous Metal Manufacturing Co., Ltd.
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000553463800001
出版者	MDPI
引用统计	被引频次：5[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/321006/140046
专题	中国科学院金属研究所
通讯作者	Zhu, Zhengwang; Zhang, Haifeng
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenqing,Geng, Tieqiang,Ge, Shaofan,et al. Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates[J]. MATERIALS,2020,13(12):14.
APA	Li, Wenqing.,Geng, Tieqiang.,Ge, Shaofan.,Zhu, Zhengwang.,Zhang, Long.,...&Zhang, Haifeng.(2020).Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates.MATERIALS,13(12),14.
MLA	Li, Wenqing,et al."Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates".MATERIALS 13.12(2020):14.