| Investigation of structure and energy of edge dislocation in bcc iron | |
| L. Q. Chen; C. Y. Wang; T. Yu | |
| 2006 | |
| Source Publication | Acta Physica Sinica
 |
| ISSN | 1000-3290 |
| Volume | 55Issue:11Pages:5980-5986 |
| Abstract | Based on the theory of dislocations, we have constructed the four models of the < 100 > {010}, < 100 > {011}, 1/2 < 111 > {001} and 1/2 < 111 > {112} edge dislocations in bcc Fe using the molecular dynamics method, and the formation energy, core energy and core radius of the dislocations have been calculated respectively. The calculated results indicated that the formation energies of < 100 > {010} and < 100 > {011} edge dislocations are higher than those of 1/2 < 111 > {011} and 1/2 < 111 > {112} edge dislocations. This shows that the formation of 1/2 < 111 > edge dislocation is easier than that of (100) edge dislocation. However, the core radii of < 100 > {010} and < 100 > {011} edge dislocations are smaller than those of 1/2 < 111 > {011} and 1/2 < 111 > {112} edge dislocations. This shows that the atomic numbers locating at the singular region in the 1/2 < 111 > edge dislocation are greater than those in < 100 > edge dislocation. Therefore, the motion of 1/2 < 111 > edge dislocation is easier than that of < 100 > edge dislocation. |
| description.department | cent iron & steel res inst, inst funct mat, beijing 100081, peoples r china. tsing hua univ, dept phys, beijing 100084, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;chen, lq (reprint author), cent iron & steel res inst, inst funct mat, beijing 100081, peoples r china;clqun123@sohu.com |
| Keyword | Bcc Fe Edge Dislocation Molecular Dynamics Simulation Transition-metals Core Structure Alpha-iron |
| URL | 查看原文 |
| WOS ID | WOS:000241880000067 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34146 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | L. Q. Chen,C. Y. Wang,T. Yu. Investigation of structure and energy of edge dislocation in bcc iron[J]. Acta Physica Sinica,2006,55(11):5980-5986. |
| APA | L. Q. Chen,C. Y. Wang,&T. Yu.(2006).Investigation of structure and energy of edge dislocation in bcc iron.Acta Physica Sinica,55(11),5980-5986. |
| MLA | L. Q. Chen,et al."Investigation of structure and energy of edge dislocation in bcc iron".Acta Physica Sinica 55.11(2006):5980-5986. |
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