| Atomistic simulation of fracture in Ni3Al | |
| H. X. Xie; C. Y. Wang; T. Yu | |
| 2008 | |
| Source Publication | Journal of Materials Research
 |
| ISSN | 0884-2914 |
| Volume | 23Issue:6Pages:1597-1603 |
| Abstract | The molecular dynamics method has been used to simulate mode I cracking in Ni3Al. Close attention has been paid to the process of atomic configuration evolution of the cracks. The simulation results show that at low temperature, the Shockley partial dislocations are emitted before the initiation of the crack propagation, subsequently forming the pseudo-twins on (11 (1) over bar) planes in crack-tip zone, and then the crack cleavage occurs. The emitting of the Shockley partial dislocations accompanies the crack cleavage during the simulation process. At the higher temperature, the blunting at the crack tip is caused by the [110] superdislocations emitted on (100) plane. The present work also shows that the dipole dislocations on (11 (1) over bar) planes in the 1/2[110] dislocation core can be formed. |
| description.department | [xie, hong-xian; wang, chong-yu; yu, tao] cent iron & steel res inst, beijing 100081, peoples r china. [wang, chong-yu] acad sinica, int ctr mat phys, shenyang 110016, peoples r china. [wang, chong-yu] tsinghua univ, dept phys, beijing 100084, peoples r china.;xie, hx (reprint author), cent iron & steel res inst, beijing 100081, peoples r china;hongxianxie@163.com |
| Keyword | Dislocation Nucleation Single-crystals Fault Energies Gamma'-phase Alpha-iron Crack Dynamics Behavior Alloys Superdislocations |
| URL | 查看原文 |
| WOS ID | WOS:000256392600013 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/33236 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | H. X. Xie,C. Y. Wang,T. Yu. Atomistic simulation of fracture in Ni3Al[J]. Journal of Materials Research,2008,23(6):1597-1603. |
| APA | H. X. Xie,C. Y. Wang,&T. Yu.(2008).Atomistic simulation of fracture in Ni3Al.Journal of Materials Research,23(6),1597-1603. |
| MLA | H. X. Xie,et al."Atomistic simulation of fracture in Ni3Al".Journal of Materials Research 23.6(2008):1597-1603. |
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