Plastic deformation inhomogeneity in a single crystal nickel-base superalloy
文献类型：期刊论文
| 作者 | X. Wu ; J. H. Zhang ; J. L. Liu ; T. Jin ; Y. B. Xu ; Z. Q. Hu |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2002 |
| 卷号 | 325期号:1-2页码:478-483 |
| 关键词 | dislocations deformation inhomogeneity stress-strain behaviors single crystal superalloy |
| ISSN号 | 0921-5093 |
| 中文摘要 | Extension and compression tests at different temperatures with various strain rates have been carried out on DD8 single crystal superalloys with [0 0 1] [1 1 0] and [1 1 1] orientations. The results show that plastic deformation heterogeneity (P-L effect) occurs in the temperature range from 300 to 700 degreesC at the strain rate of 3.3 x 10(-4) S-1 and also in the strain rate range of 1.3 x 10(-4)-5.3 x 10(-4) S-1 at 700 degreesC for the [0 0 1]-oriented single crystal nickel-base superalloy during extension. The dependence of the plastic deformation inhomogeneity on the crystallographic orientations during compression under the strain rate of 1.0 x 10(-4) S-1 at 550 degreesC were investigated, and the results indicate that the tendency to the plastic deformation inhomogeneity decreases in the order of [0 1 1], [0 0 1] and [1 1 1]. The mechanical tests display that this plastic instability may lead to the catastrophic drop in yield strength of the alloys, but can be removed by a new heat treatment, with which the yield strength can be improved. (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/321006/36461]  |
| 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 | X. Wu,J. H. Zhang,J. L. Liu,et al. Plastic deformation inhomogeneity in a single crystal nickel-base superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2002,325(1-2):478-483. |
| APA | X. Wu,J. H. Zhang,J. L. Liu,T. Jin,Y. B. Xu,&Z. Q. Hu.(2002).Plastic deformation inhomogeneity in a single crystal nickel-base superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,325(1-2),478-483. |
| MLA | X. Wu,et al."Plastic deformation inhomogeneity in a single crystal nickel-base superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 325.1-2(2002):478-483. |
入库方式： OAI收割
来源：金属研究所
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