Influence of Y on stress rupture property of a Ni-based superalloy
文献类型：期刊论文
| 作者 | P. J. Zhou ; J. J. Yu ; X. F. Sun ; H. R. Guan ; X. M. He ; Z. Q. Hu |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2012 |
| 卷号 | 551页码:236-240 |
| 关键词 | Stress rupture Nickel-based superalloys Grain boundaries Fracture Yttrium nickel-based superalloy mechanical-properties yttrium addition creep-properties rare-earth alloy ic6 boron microstructure ni3al behavior |
| ISSN号 | 0921-5093 |
| 中文摘要 | This paper focuses on the influence of Y on the stress rupture properties of a Ni-based superalloy. It also gives reasons for stress rupture life decrease caused by excessive Y doping. It has been shown that the stress rupture lives are strongly dependent on Y concentrations. The stress rupture is low for the undoped alloy and increases through a maximum from 0.009 to 0.014 wt.% Y. The microstructures of the alloys have been studied by means of SEM, TEM and EDS. When an excessive amount of Y is introduced, some BCC structured Al2Ni6Y3 phases precipitate in the vicinity of the grain boundaries. Fractographic evaluations reveal that cracks originate around Al2Ni6Y3, leading to premature failure of the stress rupture specimens. There is also some fine cubic gamma' within the Al2Ni6Y3 phase. (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/321006/60527]  |
| 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 | P. J. Zhou,J. J. Yu,X. F. Sun,et al. Influence of Y on stress rupture property of a Ni-based superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,551:236-240. |
| APA | P. J. Zhou,J. J. Yu,X. F. Sun,H. R. Guan,X. M. He,&Z. Q. Hu.(2012).Influence of Y on stress rupture property of a Ni-based superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,551,236-240. |
| MLA | P. J. Zhou,et al."Influence of Y on stress rupture property of a Ni-based superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 551(2012):236-240. |
入库方式： OAI收割
来源：金属研究所
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