Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications
文献类型：期刊论文
| 作者 | Shen, Yuanxun1; Li, Yunyue1; Sheng, Lanbing1; Liang, Yiming1; Hao, Chuanyong2; She, Chun1 |
| 刊名 | WELDING IN THE WORLD
 |
| 出版日期 | 2024-08-27 |
| 页码 | 8 |
| 关键词 | C/C composites Ni-based superalloy Cr metallization process Brazing Microstructure Mechanical properties |
| ISSN号 | 0043-2288 |
| DOI | 10.1007/s40194-024-01826-1 |
| 通讯作者 | Shen, Yuanxun(shenyuanxun@126.com) |
| 英文摘要 | In this paper, the brazing of high-reliability C/C composite-metal joints for high-temperature application was studied. The surface of C/C composites was modified by the Cr metallization process and then brazed to Ni-based superalloy by AgPd braze. Alumina block was used as interlayer, and a zig-zag interfacial structure was constructed at the composites/braze interface. The results show that, after the metallization process, a strong adhesion reaction layer consisting of Cr carbides was coated on the C/C surface which in turn obviously improved the wettability of braze. The molted braze filled completely into the laser-machined holes in the C/C substrate and well-bonded interfaces and a homogeneous Ag(Pd) solution microstructure were obtained in the joint. The strength of the joint with C/C metalized at 1100 degree celsius is higher than that of the joint with 1300 degree celsius. The joints exhibit very high bending strength of up to 82 MPa and shear strength of up to 54 MPa, respectively. The braze spikes increase the connection area and provide a strong pinning effect. |
| 资助项目 | Henan Province Science and Technology Innovation Talent Program |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001298757300001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Henan Province Science and Technology Innovation Talent Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shen, Yuanxun |
| 作者单位 | 1.Zhengzhou Res Inst Mech Engn Co LTD, State Key Lab Adv Brazing Filler Met & Technol, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Yuanxun,Li, Yunyue,Sheng, Lanbing,et al. Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications[J]. WELDING IN THE WORLD,2024:8. |
| APA | Shen, Yuanxun,Li, Yunyue,Sheng, Lanbing,Liang, Yiming,Hao, Chuanyong,&She, Chun.(2024).Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications.WELDING IN THE WORLD,8. |
| MLA | Shen, Yuanxun,et al."Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications".WELDING IN THE WORLD (2024):8. |
入库方式： OAI收割
来源：金属研究所
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