| Effect of Re on the precipitation behavior of mu phase in several single crystal superalloys |
| K. Cheng; C. Jo; T. Jin; Z. Q. Hu
|
| 2012
|
| 发表期刊 | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388
|
| 卷号 | 536页码:41474 |
| 摘要 | Three single crystal superalloys were designed based on the composition of superalloy CMSX-4 and effect of Re on the thermo-stability of these designed alloys has been investigated. Addition of the Re increased the phase instability of the alloys but did not change the type of the precipitation. All the topologically close packed (TCP) precipitation found in the three alloys was characterized as mu phase. Addition of the Re increased the formation temperature of mu phase, accelerated the precipitation of mu phase near the nose temperature of the temperature-time-transformation (TTT) curve and at low temperature (850 degrees C), but relatively depressed the precipitation of mu phase between these temperatures. It is also found that the Re could stabilize or increase the segregation abilities of other alloying elements in the gamma/gamma' phases. With the addition of Re, the W content increased in the gamma phase, while the Cr content decreased, which is the reason of that addition of the Re can enhance the phase instability of mu phase in superalloys. (C) 2012 Elsevier B.V. All rights reserved. |
| 部门归属 | [cheng, kuiyu; jin, tao; hu, zhuangqi] chinese acad sci, superalloy div, inst met res, shenyang 110016, peoples r china. [cheng, kuiyu; jo, changyong] korea inst mat sci, high temp mat grp, chang won 641010, south korea.;cheng, k (reprint author), chinese acad sci, superalloy div, inst met res, shenyang 110016, peoples r china.;kuiyucheng@hotmail.com
|
| 关键词 | Nickel-base Single Crystal Superalloy
Topologically Close Packed Phase
Mu Phase
Thermal Exposure
Nickel-based Superalloys
Creep
Mechanisms
Fatigue
Damage
|
| URL | 查看原文
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/59915
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
K. Cheng,C. Jo,T. Jin,et al. Effect of Re on the precipitation behavior of mu phase in several single crystal superalloys[J]. Journal of Alloys and Compounds,2012,536:41474.
|
| APA |
K. Cheng,C. Jo,T. Jin,&Z. Q. Hu.(2012).Effect of Re on the precipitation behavior of mu phase in several single crystal superalloys.Journal of Alloys and Compounds,536,41474.
|
| MLA |
K. Cheng,et al."Effect of Re on the precipitation behavior of mu phase in several single crystal superalloys".Journal of Alloys and Compounds 536(2012):41474.
|
修改评论