Creep properties of a powder metallurgy disk superalloy at 700 degrees C
文献类型：期刊论文
| 作者 | Dong, Kaixin ; Yuan, Chao ; Gao, Shuang ; Jia, Chonglin ; Guo, Jianting ; Ge, Changchun |
| 刊名 | JOURNAL OF MATERIALS RESEARCH
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 32期号:3页码:624-633 |
| ISSN号 | 0884-2914 |
| 通讯作者 | Yuan, C (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| 中文摘要 | As the operating temperature of disk service was elevated from 650 degrees C to 700 degrees C, the creep properties urged to be paid attention. To investigate the creep properties of spray-formed low solvus, high refractory (LSHR) superalloy at about 700 degrees C, creep tests were conducted under seven different stress ranging from 690 MPa to 897 MPa. By means of creep curves and fracture microstructure observation, the creep behaviors and fracture mechanisms of spray-formed LSHR were analyzed. Stress exponent of the alloy was comparable to other disk superalloys such as Waspaloy and Inconel 718. It was interesting to find a transition in the creep behavior in two stress regimes. The contribution of grain boundary sliding in the low stress regime was greater than that in the higher stress. Under higher stress microcracks initiated along the intragranular slip bands because of strain concentration. The spray-forming LSHR exhibited a good creep resistance at low stress compared with other two superalloys by using Larson-Miller parameter, which was consistent with the transition of fracture behaviors. |
| 学科主题 | Materials Science, Multidisciplinary |
| 收录类别 | SCI |
| 资助信息 | Technical Support Division of Shenyang R & D Center for Advanced Materials |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78301]  |
| 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 | Dong, Kaixin,Yuan, Chao,Gao, Shuang,et al. Creep properties of a powder metallurgy disk superalloy at 700 degrees C[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(3):624-633. |
| APA | Dong, Kaixin,Yuan, Chao,Gao, Shuang,Jia, Chonglin,Guo, Jianting,&Ge, Changchun.(2017).Creep properties of a powder metallurgy disk superalloy at 700 degrees C.JOURNAL OF MATERIALS RESEARCH,32(3),624-633. |
| MLA | Dong, Kaixin,et al."Creep properties of a powder metallurgy disk superalloy at 700 degrees C".JOURNAL OF MATERIALS RESEARCH 32.3(2017):624-633. |
入库方式： OAI收割
来源：金属研究所
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