Microstructures of a single-crystal nickel-base superalloy after thermo-mechanical fatigue
文献类型：期刊论文
| 作者 | Y. C. Wang ; S. X. Li ; L. Zhou ; S. H. Ai ; F. Liu ; H. Zhang ; Z. G. Wang |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2004 |
| 卷号 | 84期号:31页码:3335-3351 |
| 关键词 | finite-element-analysis ni-based superalloys dislocation networks matrix dislocations creep temperature mechanism alloy dd8 |
| ISSN号 | 1478-6443 |
| 中文摘要 | The microstructures of a single-crystal nickel-base superalloy were observed by transmission electron microscopy (TEM) before and after thermo-mechanical fatigue. Both dislocation configurations and gamma' precipitate morphologies under in-phase (IP) testing were found to be clearly different from those under out-of-phase (OP) testing. Under IP testing, dense hexagonal dislocation networks were found on the horizontal interfaces, and irregular dislocation networks on the vertical interfaces. With decreasing mechanical strain amplitude, rafting of gamma' precipitates was more pronounced. Under OP testing, no dislocation networks were found on the gamma/gamma' interfaces; also, gamma' precipitates were sheared by superlattice stacking faults, and were not clearly rafted. The characteristic dislocation networks and partials of the stacking fault are analysed and the rafting mechanism of the gamma' precipitates is discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35597]  |
| 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 | Y. C. Wang,S. X. Li,L. Zhou,et al. Microstructures of a single-crystal nickel-base superalloy after thermo-mechanical fatigue[J]. Philosophical Magazine,2004,84(31):3335-3351. |
| APA | Y. C. Wang.,S. X. Li.,L. Zhou.,S. H. Ai.,F. Liu.,...&Z. G. Wang.(2004).Microstructures of a single-crystal nickel-base superalloy after thermo-mechanical fatigue.Philosophical Magazine,84(31),3335-3351. |
| MLA | Y. C. Wang,et al."Microstructures of a single-crystal nickel-base superalloy after thermo-mechanical fatigue".Philosophical Magazine 84.31(2004):3335-3351. |
入库方式： OAI收割
来源：金属研究所
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