中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effect of Strain Rate on Compressive Behavior of a Zr-Based Metallic Glass under a Wide Range of Strain Rates

文献类型:期刊论文

作者Li, Wenqing1,2; Geng, Tieqiang2; Ge, Shaofan1,2; Zhu, Zhengwang2; Zhang, Long2; Li, Zhengkun2; Fu, Huameng2; Zhang, Hongwei2; Li, Hong2; Wang, Aimin2
刊名MATERIALS
出版日期2020-06-01
卷号13期号:12页码:14
关键词amorphous alloy strain rate yield strength free volume thermal softening SHPB
DOI10.3390/ma13122861
通讯作者Zhu, Zhengwang(zwzhu@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
英文摘要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.
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
语种英语
出版者MDPI
WOS记录号WOS:000553463800001
资助机构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.
源URL[http://ir.imr.ac.cn/handle/321006/140048]  
专题金属研究所_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.

入库方式: OAI收割

来源:金属研究所

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