| Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy | |
| Zhu, C. Z.1,2; Zhang, R.1; Cui, C. Y.1; Zhou, Y. Z.1; Liang, F. G.3; Liu, X.3; Sun, X. F.1 | |
| Corresponding Author | Zhang, R.(rzhang@imr.ac.cn) ; Cui, C. Y.(chycui@imr.ac.cn) |
| 2021-01-20 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 802Pages:10 |
| Abstract | This study investigated the influence of Ta content (i.e. 0 wt%, 2 wt%, and 4 wt%) on microstructure and creep behavior of a Ni-Co base disc superalloy at 760 degrees C/480 MPa. It was found that creep rupture life and the minimum creep strain rate showed a trend of first increase and then decrease with the increase of Ta content. The microstructure observations indicated that Ta addition promoted the increase of volume fraction of gamma', the precipitation of MC carbide and eta-phase, but inhibited the growth of gamma' and the precipitation of M23C6 carbide at grain boundaries during creep. The mechanisms related to creep behavior were discussed, and it was deemed that the higher gamma' volume fraction, finer size of gamma', larger gamma/gamma' misfit, lower atomic diffusion rate, inhibited M23C6 carbide and the palisade-like distribution of eta-phase may be responsible for the enhancement of the primary and tertiary creep resistance. |
| Keyword | Ni-Co base superalloy Tantalum Microstructure Creep behavior |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Doctoral Start-up Foundation of Liaoning Province |
| DOI | 10.1016/j.msea.2020.140646 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2017YFA0700703] ; National Key R&D Program of China[2019YFA0705304] ; National Natural Science Foundation of China[51671189] ; Doctoral Start-up Foundation of Liaoning Province |
| 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:000612553100001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160574 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, R.; Cui, C. Y. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China 3.Xian Thermal Power Res Inst Co Ltd, 136 Xingqing Rd, Xian 710032, Peoples R China |
| Recommended Citation GB/T 7714 | Zhu, C. Z.,Zhang, R.,Cui, C. Y.,et al. Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,802:10. |
| APA | Zhu, C. Z..,Zhang, R..,Cui, C. Y..,Zhou, Y. Z..,Liang, F. G..,...&Sun, X. F..(2021).Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,802,10. |
| MLA | Zhu, C. Z.,et al."Influence of Ta content on microstructure and creep behavior of a Ni-Co base disc superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 802(2021):10. |
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