Creep rupture Behavior of K40S alloy at elevated temperatures
文献类型：期刊论文
| 作者 | F. M. Yang ; X. F. Sun ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 2004 |
| 卷号 | 20期号:2页码:175-179 |
| 关键词 | K40S alloy creep fracture crack propagation activation-energies superalloy term |
| ISSN号 | 1005-0302 |
| 中文摘要 | Creep testing was conducted on K40S alloy. The detailed creep deformation and fracture mechanisms under constant load were studied. The results show that the stress exponent ranges between 7 and 14.4 at elevated temperature 973similar to1173 K, and that the activation energy is approximately 449.1 kJ/mol. During creep, the grain boundary sliding cut off primary carbides at the boundary, generating the "O" model cracks. The creep failure mode of K40S alloy is transgranular ductile and cracks originate at the primary carbides. A long carbide and matrix interface is often a preferential path for crack propagation. The creep mechanism is discussed in light of the creep microstructure, the stress exponent and the activation energy. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35663]  |
| 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 | F. M. Yang,X. F. Sun,H. R. Guan,et al. Creep rupture Behavior of K40S alloy at elevated temperatures[J]. Journal of Materials Science & Technology,2004,20(2):175-179. |
| APA | F. M. Yang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2004).Creep rupture Behavior of K40S alloy at elevated temperatures.Journal of Materials Science & Technology,20(2),175-179. |
| MLA | F. M. Yang,et al."Creep rupture Behavior of K40S alloy at elevated temperatures".Journal of Materials Science & Technology 20.2(2004):175-179. |
入库方式： OAI收割
来源：金属研究所
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