| Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy | |
| Lu, Z; Xu, YB; Hu, ZQ | |
| Corresponding Author | Lu, Z() |
| 1999-02-01 | |
| Source Publication | MATERIALS SCIENCE AND TECHNOLOGY
 |
| ISSN | 0267-0836 |
| Volume | 15Issue:2Pages:165-168 |
| Abstract | Cyclic deformation has been carried out on a directionally solidified cobalt base superalloy at room temperature in air under the control of different total strain amplitudes. Dislocation structures of different stages in the cyclic stress response curve were studied by TEM. Observations show that a large number of stacking faults and fault intersections are formed in the initial hardening stage, and this leads to the initial hardening of the alloy. However, formation of hexagonally close packed (hcp) zones and twins is proposed to be the cause of cyclic saturation. Models for both the transition from stacking faults to a hcp layer structure and to twins are proposed. |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000078917900008 |
| Publisher | INST MATERIALS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/109098 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lu, Z |
| Affiliation | Chinese Acad Sci, State Key Lab Fatigue & Fracture Mat, Met Res Inst, Shenyang 110015, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Z,Xu, YB,Hu, ZQ. Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,1999,15(2):165-168. |
| APA | Lu, Z,Xu, YB,&Hu, ZQ.(1999).Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy.MATERIALS SCIENCE AND TECHNOLOGY,15(2),165-168. |
| MLA | Lu, Z,et al."Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy".MATERIALS SCIENCE AND TECHNOLOGY 15.2(1999):165-168. |
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