Effect of Ta on Tensile Behavior and Deformation Mechanism of a Nickel-Based Single Crystal Superalloy
文献类型：期刊论文
| 作者 | Ge, Mingtao1,2; Wang, Xinguang1; Li, Yongmei1; Tan, Zihao1; Tao, Xipeng1; Yang, Yanhong1; Wang, Liang1; Zhang, Chunhua2; Zhang, Song2; Zhou, Yizhou1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2024-07-22 |
| 页码 | 14 |
| 关键词 | Ta Single crystal superalloy Tensile behavior Stacking fault Deformation mechanism |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-024-01753-6 |
| 通讯作者 | Wang, Xinguang(xgwang11b@imr.ac.cn) ; Zhang, Chunhua(zhangch5858@126.com) |
| 英文摘要 | The effects of Ta on the tensile behavior and deformation mechanisms of a Ni-based single crystal superalloy were investigated in this study from room temperature to elevated temperature. The findings demonstrated that the higher content of Ta could improve the tensile properties of the alloy at different temperatures. Due to the different deformation mechanisms at various temperatures, the influence of Ta on tensile deformation varied. At room temperature, the higher content of Ta enhanced the solid solution strengthening, which would enhance the tensile strength of 6.5Ta alloy. After standard heat treatment of 6.5Ta alloy, precipitation of the secondary gamma ' phase would hinder the movement of dislocations. When the temperature was elevated to 760 degrees C, the higher content of Ta not only promoted the interaction of stacking faults to form Lomer-Cottrell (L-C) locks that impeded dislocation motion, but also reduced the occurrence of dislocation pile-up groups, thus enhancing the yield strength. At 1120 degrees C, due to the narrower gamma channels and higher APB energy in gamma ' phase of the alloy with higher Ta addition, the processes of bypassing and shearing of dislocations were hindered, respectively. Meanwhile, the denser and more regular dislocation networks were formed in 6.5Ta alloy; and thus, the tensile strength of 6.5Ta alloy was enhanced. This study systematically investigated the effect of Ta on the tensile behavior at three different temperatures, which provided an important theoretical basis for the design of nickel-based single crystal superalloys in the future. |
| 资助项目 | National Key Research and Development Program of China[2017YFA0700704] ; Middleaged and Youth Talents in Scientific and Technological Innovation Project of Shenyang[RC220440] ; Excellent Youth Foundation of Liaoning Province[2021-YQ-02] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001274308600004 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | National Key Research and Development Program of China ; Middleaged and Youth Talents in Scientific and Technological Innovation Project of Shenyang ; Excellent Youth Foundation of Liaoning Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Xinguang; Zhang, Chunhua |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Mingtao,Wang, Xinguang,Li, Yongmei,et al. Effect of Ta on Tensile Behavior and Deformation Mechanism of a Nickel-Based Single Crystal Superalloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:14. |
| APA | Ge, Mingtao.,Wang, Xinguang.,Li, Yongmei.,Tan, Zihao.,Tao, Xipeng.,...&Sun, Xiaofeng.(2024).Effect of Ta on Tensile Behavior and Deformation Mechanism of a Nickel-Based Single Crystal Superalloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,14. |
| MLA | Ge, Mingtao,et al."Effect of Ta on Tensile Behavior and Deformation Mechanism of a Nickel-Based Single Crystal Superalloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):14. |
入库方式： OAI收割
来源：金属研究所
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