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The dissociation behavior of dislocation arrays in face centered cubic metals
Li, KQ; Zhang, ZJ; Li, LL; Zhang, P; Yang, JB; Zhang, ZF; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-11-01
发表期刊COMPUTATIONAL MATERIALS SCIENCE
ISSN0927-0256
卷号124页码:384-389
摘要Dislocations < 1 1 0 >/2 are usually dissociated into two < 1 1 2 >/6 partials with a stacking fault in face centered cubic metals. Their behavior depends strongly on the stacking fault width (SFW) in plastic deformation. However, there is no quantitative study to correlate the SFW with the dislocation configuration when these dislocations are grouped together. In this work, the SFW for different dislocation arrays is analyzed within the framework of the elasticity theory of dislocations and then verified by atomistic simulations. The results demonstrate that the spacing of dislocation arrays has to be taken into account for the SFW variation besides the dislocation character. In addition, the SFW variation with the dislocation spacing seems to be independent to temperature. Our approach can also provide a basis for the accurate estimate of the influence of stacking faults on cross-slip, the competition between slip and twinning during plastic deformations in face centered cubic metals. (C) 2016 Elsevier B.V. All rights reserved.
部门归属[li, k. q. ; zhang, z. j. ; li, l. l. ; zhang, p. ; yang, j. b. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词Stacking Fault Dislocation Face Centered Cubic Atomistic Modeling
学科领域Materials Science, Multidisciplinary
资助者Program of "One Hundred Talented People" of the Chinese Academy of Sciences; National Natural Science Foundation of China (NSFC) [51331007]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76217
专题中国科学院金属研究所
通讯作者Yang, JB; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Li, KQ,Zhang, ZJ,Li, LL,et al. The dissociation behavior of dislocation arrays in face centered cubic metals[J]. COMPUTATIONAL MATERIALS SCIENCE,2016,124:384-389.
APA Li, KQ.,Zhang, ZJ.,Li, LL.,Zhang, P.,Yang, JB.,...&Zhang, ZF .(2016).The dissociation behavior of dislocation arrays in face centered cubic metals.COMPUTATIONAL MATERIALS SCIENCE,124,384-389.
MLA Li, KQ,et al."The dissociation behavior of dislocation arrays in face centered cubic metals".COMPUTATIONAL MATERIALS SCIENCE 124(2016):384-389.
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