Low cycle fatigue behavior and microstructure evolution of a fourth-generation single crystal superalloy at 800 °C
文献类型：期刊论文
| 作者 | Liang, Z. Y.1,2; Tan, Z. H.1; Zhang, C. H.2; Zhang, S.2; Tao, X. P.1; Wang, X. G.1; Jafri, S. M. Abbas1; Shi, Z. W.3; Yang, Y. H.1; Liu, J. D.1 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 205页码:14 |
| 关键词 | Fourth-generation Ni-base single crystal super-alloy Low cycle fatigue Cyclic hardening Dislocation configuration Deformation mechanism |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.113329 |
| 通讯作者 | Zhang, C. H.(zhangch5858@126.com) ; Wang, X. G.(xgwang11b@imr.ac.cn) |
| 英文摘要 | The advanced fourth-generation single crystal superalloys have great service performance at high temperature, including outstanding fatigue, creep and oxidation-resistance. Low cycle fatigue (LCF) behaviors and microstructure evolution of a fourth-generation single crystal superalloy under different strain amplitudes at 800 degrees C were investigated in this study. As the strain amplitude increased, the cyclic hardening level of the experimental superalloy increased. The crack initiation could be attributed to the exfoliation of the oxidation layers. Furthermore, within strain amplitude range of 0.65% to 1.0%, slipping bands sheared both gamma and gamma' phases. The process of super-dislocations shearing into the gamma' precipitates contributed to cyclic softening and resulted in the severe plastic deformation, thereby reducing the LCF life. Dense stacking faults (SFs) with "straight feature" and "zigzag feature" in the gamma channels were observed under strain amplitude of 0.9% and 1.0%. The continuous Lomer-Cottrell lock (L-C lock) is the strong obstacle of dislocation movement, which resulted in cyclic hardening. This investigation and the resulting experimental data serve as a valuable reference for the engineering application of the fourth-generation single crystal superalloy. The findings can provide insights into the behavior and properties of the alloy, aiding in its practical use and development in various engineering applications. |
| 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] ; Shanghai Rising-Star Program[20QB1406100] ; 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:001085441500001 |
| 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 ; Shanghai Rising-Star Program ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177821]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, C. H.; Wang, X. G. |
| 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 3.AECC Commercial Aircraft Engine Co Ltd, Dept Mat Engn, Shanghai 200241, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Z. Y.,Tan, Z. H.,Zhang, C. H.,et al. Low cycle fatigue behavior and microstructure evolution of a fourth-generation single crystal superalloy at 800 °C[J]. MATERIALS CHARACTERIZATION,2023,205:14. |
| APA | Liang, Z. Y..,Tan, Z. H..,Zhang, C. H..,Zhang, S..,Tao, X. P..,...&Sun, X. F..(2023).Low cycle fatigue behavior and microstructure evolution of a fourth-generation single crystal superalloy at 800 °C.MATERIALS CHARACTERIZATION,205,14. |
| MLA | Liang, Z. Y.,et al."Low cycle fatigue behavior and microstructure evolution of a fourth-generation single crystal superalloy at 800 °C".MATERIALS CHARACTERIZATION 205(2023):14. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。