Ductile-to-brittle transition in spallation of metallic glasses
文献类型：期刊论文
| 作者 | Huang X; Ling Z; Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2014-10-14 |
| 卷号 | 116期号:14页码:143503 |
| ISSN号 | 0021-8979 |
| 产权排序 | [Huang, X.; Ling, Z.; Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Huang, X.] China Acad Engn Phys, Inst Syst Engn, Mianyang 621999, Sichuan, Peoples R China; [Dai, L. H.] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 10081, Peoples R China |
| 英文摘要 | In this paper, the spallation behavior of a binary metallic glass Cu50Zr50 is investigated with molecular dynamics simulations. With increasing the impact velocity, micro-voids induced by tensile pulses become smaller and more concentrated. The phenomenon suggests a ductile-to-brittle transition during the spallation process. Further investigation indicates that the transition is controlled by the interaction between void nucleation and growth, which can be regarded as a competition between tension transformation zones (TTZs) and shear transformation zones (STZs) at atomic scale. As impact velocities become higher, the stress amplitude and temperature rise in the spall region increase and micro-structures of the material become more unstable. Therefore, TTZs are prone to activation in metallic glasses, leading to a brittle behavior during the spallation process. (C) 2014 AIP Publishing LLC. |
| 学科主题 | Physics |
| 分类号 | 二类/Q2 |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000343988000010 |
| 资助机构 | Financial support was from the National Key Basic Research Program of China (2012CB937500), the NSFC (Grants Nos.: 11272328, 11472287, and 11402245), and the CAS/SAFEA International Partnership Program for Creative Research Teams. |
| 公开日期 | 2014-12-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49391]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Huang X,Ling Z,Dai LH,et al. Ductile-to-brittle transition in spallation of metallic glasses[J]. JOURNAL OF APPLIED PHYSICS,2014,116(14):143503. |
| APA | Huang X,Ling Z,戴兰宏,&Dai, LH .(2014).Ductile-to-brittle transition in spallation of metallic glasses.JOURNAL OF APPLIED PHYSICS,116(14),143503. |
| MLA | Huang X,et al."Ductile-to-brittle transition in spallation of metallic glasses".JOURNAL OF APPLIED PHYSICS 116.14(2014):143503. |
入库方式： OAI收割
来源：力学研究所
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