Superplasticity of a directionally solidified NiAl-Fe(Nb) alloy at high temperature
文献类型：期刊论文
| 作者 | Y. H. Qi ; J. T. Guo ; C. Y. Cui ; G. S. Li |
| 刊名 | Materials Letters
 |
| 出版日期 | 2002 |
| 卷号 | 57期号:3页码:552-557 |
| 关键词 | intermetallic directional solidification superplasticity in-situ composites deformation-behavior constituent phases fe systems |
| ISSN号 | 0167-577X |
| 中文摘要 | The superplastic behavior of a directionally solidified (DS) Ni-20Al-27Fe-3Nb intermetallic alloy, which consists of dendritic beta-NiAl phase and interdendritic gamma/-gamma' phase, has been investigated. This alloy exhibits superplastic deformation behavior at 950-1100degreesC over an initial strain rate range of 5.2 x 10 (- 4)-1.04 x 10 (2) s (- 1), with the strain rate sensitivity index m = 0.21-0.45. The maximum elongation of 260% with m=0.29 was obtained at 1050 degreesC and an initial strain rate of 5.2 x 10 (- 3) s (- 1). Transmission electron microscopy (TEM) observations indicate that the mechanism of superplastic deformation is the high resistance against strain softening accommodated by the dislocation sliding and dynamic recrystallization. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36389]  |
| 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. H. Qi,J. T. Guo,C. Y. Cui,et al. Superplasticity of a directionally solidified NiAl-Fe(Nb) alloy at high temperature[J]. Materials Letters,2002,57(3):552-557. |
| APA | Y. H. Qi,J. T. Guo,C. Y. Cui,&G. S. Li.(2002).Superplasticity of a directionally solidified NiAl-Fe(Nb) alloy at high temperature.Materials Letters,57(3),552-557. |
| MLA | Y. H. Qi,et al."Superplasticity of a directionally solidified NiAl-Fe(Nb) alloy at high temperature".Materials Letters 57.3(2002):552-557. |
入库方式： OAI收割
来源：金属研究所
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