Dissolution of gamma' Phase in a Single Crystal Superalloy After High-cycle Fatigue
文献类型：期刊论文
| 作者 | Liu Yuan2,3; Wang Linning1,2; Yu Jinjiang2; Sun Xiaofeng2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 49期号:9页码:2925-2929 |
| 关键词 | dissolution precipitation high-cycle fatigue single crystal superalloy |
| ISSN号 | 1002-185X |
| 通讯作者 | Wang Linning(lnwang00@163.com) |
| 英文摘要 | High-cycle fatigue (HCF) tests at different temperatures were performed on a single crystal superalloy SRR99 with [001] orientation. The results demonstrate that conditional fatigue strength increases first and then decreases with the increase of temperature, exhibiting the same tendency with tensile strength at elevated temperatures. The microstructures were observed by SEM and TEM and it is found that the morphology of gamma' particles changes significantly and dissolution of gamma' particles takes place during cyclic loading. This may be induced by the back and forth movement of interface dislocations during the cyclic loading. As a result, the strengthening effect of the coherent gamma/gamma coherent interfaces is gradually deteriorated during high-cycle fatigue deformation. In addition, the fatigue crack propagation is found to be primarily along a specific crystalline plane, which is identified as (111). The specific mechanism for the microstructure evolution during cyclic loading was discussed based on SEM and TEM observations. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000576197200003 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/140901]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang Linning |
| 作者单位 | 1.Tianjin Univ Technol & Educ, Tianjin 300222, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Civil Aviat Univ China, Tianjin 300300, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Yuan,Wang Linning,Yu Jinjiang,et al. Dissolution of gamma' Phase in a Single Crystal Superalloy After High-cycle Fatigue[J]. RARE METAL MATERIALS AND ENGINEERING,2020,49(9):2925-2929. |
| APA | Liu Yuan,Wang Linning,Yu Jinjiang,&Sun Xiaofeng.(2020).Dissolution of gamma' Phase in a Single Crystal Superalloy After High-cycle Fatigue.RARE METAL MATERIALS AND ENGINEERING,49(9),2925-2929. |
| MLA | Liu Yuan,et al."Dissolution of gamma' Phase in a Single Crystal Superalloy After High-cycle Fatigue".RARE METAL MATERIALS AND ENGINEERING 49.9(2020):2925-2929. |
入库方式： OAI收割
来源：金属研究所
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