Influence of the characteristic of recrystallization grain boundary on the formation of creep cracks in a directionally solidified Ni-base superalloy
文献类型：期刊论文
| 作者 | G. Xie ; L. H. Lou |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2012 |
| 卷号 | 532页码:579-584 |
| 关键词 | Recrystallization Superalloy Cracks Dislocation Grain boundary surface recrystallization microstructure dislocations cmsx-4 |
| ISSN号 | 0921-5093 |
| 中文摘要 | Creep tests of a directionally solidified (DS) Ni-base superalloy specimens containing local recrystallization (RX) were carried out at 980 degrees C/235 MPa and the influence of the characteristic of RX grain boundary on the formation of creep cracks was investigated. The RX grain boundary morphology, misorientation and dislocation pattern at high, low angle and twin boundaries during creep were examined. It was shown that only a few high angle grain boundaries (GBs), but not all of them cracked during creep and even after ruptured. This is associated with the dislocation mobility at GBs or the morphology of CBs. The possibility of crack formation was discussed based on the transmission behavior of dislocations at different GBs. (C) 2011 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60352]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. Xie,L. H. Lou. Influence of the characteristic of recrystallization grain boundary on the formation of creep cracks in a directionally solidified Ni-base superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,532:579-584. |
| APA | G. Xie,&L. H. Lou.(2012).Influence of the characteristic of recrystallization grain boundary on the formation of creep cracks in a directionally solidified Ni-base superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,532,579-584. |
| MLA | G. Xie,et al."Influence of the characteristic of recrystallization grain boundary on the formation of creep cracks in a directionally solidified Ni-base superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 532(2012):579-584. |
入库方式： OAI收割
来源：金属研究所
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