On the low cycle fatigue deformation of K40S cobalt-base superalloy at elevated temperature
文献类型：期刊论文
| 作者 | F. M. Yang ; X. F. Sun ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Materials Letters
 |
| 出版日期 | 2003 |
| 卷号 | 57期号:19页码:2823-2828 |
| ISSN号 | 0167-577X |
| 关键词 | K40S cobalt-base alloy isothermal cyclic deformation cyclic stress response room-temperature behavior alloy mechanisms |
| 中文摘要 | Low cycle isothermal mechanical fatigue testing K40S cobalt-base superalloy was carried out at 700 and 900degreesC with total strain amplitude from +/-0.1 to +/-1.0 pct. Correlations between microscopic cyclic deformation and cycle stress response with various microstructural phenomena were enabled through scanning electron microscopy (SEM) and transmission electron microscopy (TEM), detailing the deformation substructure and carbide precipitation. The results show that K40S superalloy exhibited cyclic stress response of cyclic hardening at 700degreesC, and of initial hardening followed by softening at 900degreesC. In addition, at both temperatures, cyclic hardening during cycle deformation increased with increasing strain amplitude, while the fatigue lifetime decreased. The cyclic stress response behavior can be rationalized based on the mechanisms associated with dislocation-dislocation interactions, dislocation-precipitate (M23C6) interactions and interactions between solute atoms and dislocations. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36105]  |
| 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. On the low cycle fatigue deformation of K40S cobalt-base superalloy at elevated temperature[J]. Materials Letters,2003,57(19):2823-2828. |
| APA | F. M. Yang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2003).On the low cycle fatigue deformation of K40S cobalt-base superalloy at elevated temperature.Materials Letters,57(19),2823-2828. |
| MLA | F. M. Yang,et al."On the low cycle fatigue deformation of K40S cobalt-base superalloy at elevated temperature".Materials Letters 57.19(2003):2823-2828. |
入库方式： OAI收割
来源：金属研究所
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