| Creep anisotropy of a 3rd generation nickel-base single crystal superalloy at 850 degrees C | |
| Li, Yifei1,2; Wang, Li1; Zhang, Gong1; Zhang, Jian1; Lou, Langhong1 | |
| Corresponding Author | Wang, Li(wangli@imr.ac.cn) |
| 2019-07-08 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 760Pages:26-36 |
| Abstract | The influence of orientation on the creep behaviors of a 3rd generation single crystal superalloy was studied at 850 degrees C. It is found that the creep properties are highly anisotropic for [001], [011] and [111] specimens. The [111] samples show the longest creep life. The [011] specimens display the shortest creep life of less than 1 h and the longest elongation. And [001] specimens exhibit the intermediate creep life. Electron backscattered diffraction (EBSD) analyses and transmission electron microscopy (TEM) observations show that the creep anisotropy is mainly related to the slip systems that activated, especially the < 112 > {111} slip systems. Single slip of < 112 > {111} system results in a high creep strain and poor property, which controls the primary creep of [001] and entire creep stage of [011] specimens. While interaction of primary and secondary < 112 > {111} systems has an effect on work hardening, which occurs during steady and tertiary creep of [111] orientation and hence results in the best creep property of [111] specimens. By comparing with SRR99 and CMSX-4 alloys, higher Re content in DD33 alloy may facilitate the formation of continuous stacking faults in [011] specimens and activation of multiple < 112 > {111} slip systems in [111] specimens, which will affect the creep property and anisotropy. |
| Keyword | Nickel base superalloy Creep Anisotropy Microstructure Dislocation |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.msea.2019.05.075 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51871210] ; National Natural Science Foundation of China[51671196] ; National Natural Science Foundation of China[51631008] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000474501200004 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134473 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Li |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Yifei,Wang, Li,Zhang, Gong,et al. Creep anisotropy of a 3rd generation nickel-base single crystal superalloy at 850 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,760:26-36. |
| APA | Li, Yifei,Wang, Li,Zhang, Gong,Zhang, Jian,&Lou, Langhong.(2019).Creep anisotropy of a 3rd generation nickel-base single crystal superalloy at 850 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,760,26-36. |
| MLA | Li, Yifei,et al."Creep anisotropy of a 3rd generation nickel-base single crystal superalloy at 850 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 760(2019):26-36. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment