Microstructure investigation of NiAl-Cr(Mo) interface in a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal
文献类型：期刊论文
| 作者 | Y. X. Chen ; C. Y. Cui ; J. T. Guo ; D. X. Li |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2004 |
| 卷号 | 373期号:1-2页码:279-285 |
| 关键词 | NiAl TEM microstructure O-lattice model misfit dislocation resolution electron-microscopy nialfe matrix composites rod-plate transition in-situ composites phase cr deformation |
| ISSN号 | 0921-5093 |
| 中文摘要 | The microstructure of a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal in as-processed and heat-treated states has been studied by means of scanning electron microscopy and high resolution electron microscopy (HREM). The microstructure of the NiAl-Cr(Mo) eutectic was characterized by lamellar Cr(Mo) phases embedded within NiAl matrix with common growth direction of <111>. The interface between NiAl and lamellar Cr(Mo) did not have any transition layers. Misfit dislocations were observed at the NiAl-cr(Mo) interface. In addition to lamellar Cr(Mo) phases, coherent Cr(Mo, Ni, Al) precipitates and NiAl precipitates were also observed in the NiAl matrix and lamellar Cr(Mo) phases, respectively. After hot isostatic pressing and heat treatment, the NiAl-Cr(Mo) interfaces became smooth and straight. Square array of misfit dislocations was directly observed at the (001) interface between NiAl and Cr(Mo, Ni, Al) precipitate. The configuration of misfit dislocation network showed a generally good agreement with prediction based on the geometric O-lattice model. (C) 2004 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35331]  |
| 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. X. Chen,C. Y. Cui,J. T. Guo,et al. Microstructure investigation of NiAl-Cr(Mo) interface in a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2004,373(1-2):279-285. |
| APA | Y. X. Chen,C. Y. Cui,J. T. Guo,&D. X. Li.(2004).Microstructure investigation of NiAl-Cr(Mo) interface in a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,373(1-2),279-285. |
| MLA | Y. X. Chen,et al."Microstructure investigation of NiAl-Cr(Mo) interface in a directionally solidified NiAl-Cr(Mo) eutectic alloyed with refractory metal".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 373.1-2(2004):279-285. |
入库方式： OAI收割
来源：金属研究所
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