| Thermal Fatigue Behavior of Single-Crystal Superalloy | |
| Liu Yuan1,2; Yu Jinjiang1; Xu Yan1; Sun Xiaofeng1 | |
| Corresponding Author | Liu Yuan(yuanliu@imr.ac.cn) |
| 2009 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 38Issue:1Pages:59-63 |
| Abstract | The effects of cycle temperatures on the thermal fatigue crack growth of three kinds of superalloys were investigated. The experimental results show that the crack growth rate increases with the rise of cycle temperature. Optical Microscopy (OM) and Scanning electron microscopy (SEM) observations reveal that multiple small cracks primarily initiated at the notch tip in any temperature range. Subsequently, only one or two small cracks can continue to grow, and finally form the main cracks. The crack growth behavior varies distinctly for different alloys. In general, thermal fatigue cracks propagate along a preferential direction with the dendrite growth direction in single crystal superalloy, but along the interdendritic region for the Mar-M002 alloy. |
| Keyword | single-crystal superalloy thermal fatigue crack initiation and propagation |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000262955600014 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/96878 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu Yuan |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Liu Yuan,Yu Jinjiang,Xu Yan,et al. Thermal Fatigue Behavior of Single-Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(1):59-63. |
| APA | Liu Yuan,Yu Jinjiang,Xu Yan,&Sun Xiaofeng.(2009).Thermal Fatigue Behavior of Single-Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,38(1),59-63. |
| MLA | Liu Yuan,et al."Thermal Fatigue Behavior of Single-Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 38.1(2009):59-63. |
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