| General yield behaviors of the {110} hexagonal dislocation networks in body centered cubic metal molybdenum | |
| Xia, Z. Y.1,2; Zhang, Z. J.1; Yan, J. X.1,2; Yang, J. B.1,2; Zhang, Z. F.1,2 | |
| Corresponding Author | Zhang, Z. J.(zjzhang@imr.ac.cn) ; Yang, J. B.(jbyang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 2019-12-01 | |
| Source Publication | COMPUTATIONAL MATERIALS SCIENCE
 |
| ISSN | 0927-0256 |
| Volume | 170Pages:6 |
| Abstract | The {110} hexagonal dislocation networks (HDNs) act as important carriers of the low-temperature plastic deformation in the body-centered-cubic (BCC) metals. Erenow, only a handful of studies have been performed on the yield behaviors of this planar networks, resulting in it being perplexing. In this letter, by three types of loading modes, the general yield behaviors, which comprise the critical stresses to move the network along any direction on the (01 (1) over bar) plane, the partitions on the cooperative motion of two or three sets of dislocations and the conditions under which the steady motion of the HDN takes place, are proposed to disclose the motion mechanism for the HDNs in molybdenum by atomistic simulations. Also, the characteristic that the motion directions of the HDN are changeable, a result of the natural transition to the steady motion, explains why there is no fixed dead band for the (01 (1) over bar) anomalous slip in these BCC metals. |
| Keyword | Hexagonal dislocation networks Body centered cubic Yielding behaviors Small-angle twist grain boundaries Atomistic simulation |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| DOI | 10.1016/j.commatsci.2019.109116 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51571198] ; National Natural Science Foundation of China (NSFC)[51771206] ; National Natural Science Foundation of China (NSFC)[51790482] ; National Natural Science Foundation of China (NSFC)[51871223] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000498062100011 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136092 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Z. J.; Yang, J. B.; Zhang, Z. F. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Xia, Z. Y.,Zhang, Z. J.,Yan, J. X.,et al. General yield behaviors of the {110} hexagonal dislocation networks in body centered cubic metal molybdenum[J]. COMPUTATIONAL MATERIALS SCIENCE,2019,170:6. |
| APA | Xia, Z. Y.,Zhang, Z. J.,Yan, J. X.,Yang, J. B.,&Zhang, Z. F..(2019).General yield behaviors of the {110} hexagonal dislocation networks in body centered cubic metal molybdenum.COMPUTATIONAL MATERIALS SCIENCE,170,6. |
| MLA | Xia, Z. Y.,et al."General yield behaviors of the {110} hexagonal dislocation networks in body centered cubic metal molybdenum".COMPUTATIONAL MATERIALS SCIENCE 170(2019):6. |
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