Effect of solid solution heat treatment duration on microstructure evolution and the high temperature and low stress creep properties of a low-cost fourth-generation single crystal superalloy
文献类型：期刊论文
| 作者 | Liang, Z. Y.1,2; Wang, X. G.1; Tan, Z. H.1; Jafri, S. M. Abbas1; Tao, X. P.1; Yang, Y. H.1; Liu, J. D.1; Liu, J. L.1; Zhang, C. H.2; Zhang, S.2 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 215页码:15 |
| 关键词 | Low-cost fourth -generation Ni-based single crystal superalloy Solid solution heat treatment Microstructure evolution Creep properties |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2024.114137 |
| 通讯作者 | Wang, X. G.(xgwang11b@imr.ac.cn) ; Zhang, C. H.(zhangch5858@126.com) |
| 英文摘要 | Low-cost Ni-based single crystal superalloy with high performance attracted much attention to the researchers in recent years. A Ru-free low-cost fourth-generation single crystal superalloy was designed in this study, which was rarely reported previously. This study mainly focused on the effect of solid solution heat treatment duration on the microstructure evolution and high temperature and low stress creep properties on the experimental superalloy. By the metallographic method, it was revealed that the dendritic segregation was gradually eliminated with the increasing solid solution heat treatment duration. Segregation of Al and Ta were well homogenized as well as W. Segregation of Re could still be observed after 32 h solid solution heat treatment. Quantity and fraction of pores increased, which has a significant influence on the creep properties. Compositional variation between dendritic and inter-dendritic region was the main factor that caused the qualitative difference in the size and volume fraction of the gamma' phase. Gap of the gamma' size and volume fraction between dendritic cores and interdendritic region after solid solution heat treatment became minor. Homogeneous dislocation networks formed during the creep test and the ruptured dislocation networks of the specimen subjected to 32 h solid solution heat treatment were found. In the tertiary stage of the creep test, the primary creep deformation mechanism is the super-dislocations with Burgers vector of a < 010 > shearing the rafted gamma' phases. The specimen subjected to 16 h solid solution heat treatment has the optimal creep performance, followed by those subjected to 32 h and 8 h, respectively. |
| 资助项目 | National Key Research and Development Program of China[2017YFA0700704] ; National Science and Technology Major Project[2017-VI-0002-0072] ; Excellent Youth Foundation of Liaoning Province[2021-YQ-02] ; Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang[RC220440] ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001266530700001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key Research and Development Program of China ; National Science and Technology Major Project ; Excellent Youth Foundation of Liaoning Province ; Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, X. G.; Zhang, C. H. |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Z. Y.,Wang, X. G.,Tan, Z. H.,et al. Effect of solid solution heat treatment duration on microstructure evolution and the high temperature and low stress creep properties of a low-cost fourth-generation single crystal superalloy[J]. MATERIALS CHARACTERIZATION,2024,215:15. |
| APA | Liang, Z. Y..,Wang, X. G..,Tan, Z. H..,Jafri, S. M. Abbas.,Tao, X. P..,...&Sun, X. F..(2024).Effect of solid solution heat treatment duration on microstructure evolution and the high temperature and low stress creep properties of a low-cost fourth-generation single crystal superalloy.MATERIALS CHARACTERIZATION,215,15. |
| MLA | Liang, Z. Y.,et al."Effect of solid solution heat treatment duration on microstructure evolution and the high temperature and low stress creep properties of a low-cost fourth-generation single crystal superalloy".MATERIALS CHARACTERIZATION 215(2024):15. |
入库方式： OAI收割
来源：金属研究所
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