Properties and microstructures of M951 alloy after long-term exposure
文献类型：期刊论文
| 作者 | J. J. Yu ; Z. W. Lian ; Z. K. Chu ; X. F. Sun ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2010 |
| 卷号 | 527期号:7-8页码:1896-1902 |
| 关键词 | M951 superalloy Heat treatment Long-term ageing Yield strength Stress rupture life ni-base superalloy nickel-based superalloy temperature-dependence mechanical-properties thermal exposure precipitation growth boron |
| ISSN号 | 0921-5093 |
| 中文摘要 | The amount of M(23)C(6) from decomposed MC during long time ageing at 900 degrees C is much greater than at 1100 degrees C. The carbide particle can retard mobile dislocations shearing gamma' precipitates, and secondary gamma' precipitates vary limitedly so that the 900 degrees C/100 h stress rupture life reaches peak value. With increase of ageing times at 1100 degrees C, a large amount of fine spheroidal gamma' particles precipitate among secondary gamma' precipitates so that the 1000 degrees C yield strength of the alloy abnormally increases comparing to that with standard heat treatment. After exposure at 1100 degrees C, the dislocation networks at the interface of gamma'/gamma are destroyed gradually and cannot hinder more dislocations cutting into gamma' particles, which results in the decrease of stress rupture life. The room-temperature tensile deformation mechanisms of specimens after long-term exposure at 1100 degrees C are mainly controlled by dislocation glide and climb. It shows that ageing temperature has an important effect on deformation mechanism. (C) 2009 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31658]  |
| 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 | J. J. Yu,Z. W. Lian,Z. K. Chu,et al. Properties and microstructures of M951 alloy after long-term exposure[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(7-8):1896-1902. |
| APA | J. J. Yu,Z. W. Lian,Z. K. Chu,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2010).Properties and microstructures of M951 alloy after long-term exposure.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(7-8),1896-1902. |
| MLA | J. J. Yu,et al."Properties and microstructures of M951 alloy after long-term exposure".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.7-8(2010):1896-1902. |
入库方式： OAI收割
来源：金属研究所
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