| Crack, growth behavior of SRR99 single crystal superalloy under thermal fatigue | |
| Liu Yuan1,2; Yu Jinjiang1; Xu Yan1; Sun Xiaofeng1; Guan Hengrong1; Hu Zhuangqi1 | |
| 通讯作者 | Liu Yuan(yuanliu@imr.ac.cn) |
| 2008-10-01 | |
| 发表期刊 | RARE METALS
 |
| ISSN | 1001-0521 |
| 卷号 | 27期号:5页码:526-530 |
| 摘要 | The thermal fatigue behavior of a single crystal superalloy SRR99 was investigated. Specimens with V-type notch were tested at the peak temperatures of 900, 1000, and 1100 degrees C. The crack growth curves as a function of the number of cycles were plotted. With the increase of peak temperature, the crack initiation life was shortened dramatically. Through optical microscopy (OM) and scanning electron microscopy (SEM) observation, it was found that multiple small cracks nucleated at the notch tip region but only one or two of them continued to develop in the following thermal cycles. The primary cracks generally propagated along a preferential direction. Microstructure changes after thermal fatigue were also discussed on the basis of SEM observation. |
| 关键词 | single crystal superalloy thermal fatigue crack growth behavior dendrite orientation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000260547100016 |
| 出版者 | NONFERROUS METALS SOC CHINA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/94627 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Liu Yuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Yuan,Yu Jinjiang,Xu Yan,et al. Crack, growth behavior of SRR99 single crystal superalloy under thermal fatigue[J]. RARE METALS,2008,27(5):526-530. |
| APA | Liu Yuan,Yu Jinjiang,Xu Yan,Sun Xiaofeng,Guan Hengrong,&Hu Zhuangqi.(2008).Crack, growth behavior of SRR99 single crystal superalloy under thermal fatigue.RARE METALS,27(5),526-530. |
| MLA | Liu Yuan,et al."Crack, growth behavior of SRR99 single crystal superalloy under thermal fatigue".RARE METALS 27.5(2008):526-530. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论