Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy
文献类型：期刊论文
| 作者 | X. Z. Qin ; J. T. Guo ; C. Yuan ; J. S. Hou ; L. Z. Zhou ; H. Q. Ye |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2012 |
| 卷号 | 543页码:121-128 |
| 关键词 | Ni-base superalloy Thermal exposure Microstructural evolution TCP-mu phase Mechanical property primary mc carbide mechanical-properties creep-properties phase-formation behavior precipitation decomposition stability rupture stress |
| ISSN号 | 0921-5093 |
| 中文摘要 | Microstructural evolution and microstructure-property relationship during long-term thermal exposure in K446 alloy are investigated in detail. The coarsening rate of gamma' precipitates increases with the rise of exposure temperature, yet decreases with the increment of exposure time. Primary MC carbides present an excellent stability and decompose to a tiny degree by two reaction forms, which have an insignificant influence on the properties. TCP-mu phase precipitates from the supersaturated matrix in the forms of needles and granules and experiences a remarkable evolution with prolonged exposure; the mu. phase near the grain boundaries (GBs) evolves slower than that within the grains due to the inhomogeneous distribution of elements. In addition, the precipitation of mu phase is determined to be more detrimental to the mechanical properties than the gamma' coarsening in the present alloy. (C) 2012 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60195]  |
| 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. Z. Qin,J. T. Guo,C. Yuan,et al. Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,543:121-128. |
| APA | X. Z. Qin,J. T. Guo,C. Yuan,J. S. Hou,L. Z. Zhou,&H. Q. Ye.(2012).Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,543,121-128. |
| MLA | X. Z. Qin,et al."Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 543(2012):121-128. |
入库方式： OAI收割
来源：金属研究所
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