Precipitation behaviour of beta and gamma ' in high Al low thermal expansion superalloy
文献类型：期刊论文
| 作者 | L. X. Yu ; X. F. Sun ; W. R. Sun ; S. R. Guo ; Z. Q. Hu |
| 刊名 | Materials Science and Technology
 |
| 出版日期 | 2011 |
| 卷号 | 27期号:1页码:421-425 |
| 关键词 | Thermal expansion IN783 Gamma prime Beta Aluminium heat-treatment tensile properties inconel alloy-783 microstructure in738lc growth |
| ISSN号 | 0267-0836 |
| 中文摘要 | The precipitation behaviour of beta and gamma' in a low thermal expansion superalloy IN783 was investigated. It was demonstrated that coarse gamma' precipitates do form during beta aging at 845 degrees C. During aging at lower temperatures, not only fine gamma' particles are formed, the coarse gamma' particles also change from spherical to cuboidal. Therefore, a bimodal distribution of gamma' is formed in the matrix after standard aging treatment. The formation of beta consumes Al atoms, which constrains the formation of coarse gamma' in the zone around beta during aging at 845 degrees C. During gamma' aging, a fine gamma' precipitating zone is formed around b. Prolonging the beta aging duration markedly promotes the formation of beta at grain boundaries and in the matrix, significantly enlarges the fine gamma' precipitating zone and influences the precipitation of coarse gamma'. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30853]  |
| 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 | L. X. Yu,X. F. Sun,W. R. Sun,et al. Precipitation behaviour of beta and gamma ' in high Al low thermal expansion superalloy[J]. Materials Science and Technology,2011,27(1):421-425. |
| APA | L. X. Yu,X. F. Sun,W. R. Sun,S. R. Guo,&Z. Q. Hu.(2011).Precipitation behaviour of beta and gamma ' in high Al low thermal expansion superalloy.Materials Science and Technology,27(1),421-425. |
| MLA | L. X. Yu,et al."Precipitation behaviour of beta and gamma ' in high Al low thermal expansion superalloy".Materials Science and Technology 27.1(2011):421-425. |
入库方式： OAI收割
来源：金属研究所
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