| Precipitation behavior of mu phase and creep rupture in single crystal superalloy CMSX-4 |
| K. Cheng; C. Jo; T. Jin; Z. Q. Hu
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| 2011
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| 发表期刊 | Journal of Alloys and Compounds
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| ISSN | 0925-8388
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| 卷号 | 509期号:25页码:7078-7086 |
| 摘要 | Precipitation behavior of a topologically close packed (TCP) mu phase as well as its role during the creep deformation in single crystal superalloy CMSX-4 have been investigated. The mu particles nucleated and grew based on low index planes of both the mu phase ({11 (2) over bar 0} and {1 0 (1) over bar0}) and the matrix ({110}, {001} or {111} and {112}) by epitaxial growth toward < 0001 >(mu) or < 110 >gamma directions, which predominantly resulted in a rod-like morphology. Interestingly, composition of these rod-like mu particles varied with the ratio of Ni/(W + Re) due to the different diffusion rates of these elements in the matrix during thermal exposure. Moreover, the gamma' evolution played an important role in the precipitation behavior and the fracture behavior of the mu phase. The rod-like mu particles were not fractured by stress concentration, as they were surrounded by the gamma' envelope. (C) 2011 Elsevier B.V. All rights reserved. |
| 部门归属 | [cheng, kuiyu; jo, changyong] korea inst mat sci, high temp mat grp, chang won 641010, south korea. [cheng, kuiyu; jin, tao; hu, zhuangqi] chinese acad sci, superalloy div, inst met res, shenyang 110016, peoples r china.;cheng, k (reprint author), korea inst mat sci, high temp mat grp, chang won 641010, south korea;kuiyucheng@hotmail.com
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| 关键词 | Nickel-base Single Crystal Superalloy
Topologically Close Packed Phase
Thermal Exposure
Creep
Nickel-base Superalloys
Ni
Deformation
Microstructure
Mechanisms
Diffusion
Exposure
Fatigue
Design
Damage
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| URL | 查看原文
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| WOS记录号 | WOS:000290794000018
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/30283
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
K. Cheng,C. Jo,T. Jin,et al. Precipitation behavior of mu phase and creep rupture in single crystal superalloy CMSX-4[J]. Journal of Alloys and Compounds,2011,509(25):7078-7086.
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| APA |
K. Cheng,C. Jo,T. Jin,&Z. Q. Hu.(2011).Precipitation behavior of mu phase and creep rupture in single crystal superalloy CMSX-4.Journal of Alloys and Compounds,509(25),7078-7086.
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| MLA |
K. Cheng,et al."Precipitation behavior of mu phase and creep rupture in single crystal superalloy CMSX-4".Journal of Alloys and Compounds 509.25(2011):7078-7086.
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