Improving the interface strength and fatigue property of W-Cu-steel brazed joint via induced interface alloying
文献类型：期刊论文
| 作者 | Xu, Huaqi2,4; Wang, Wanjing2,4 ; Wang, Ji-Chao1; Zhang, Wenjing3; Chen, Zhen2,4; Qi, Xiaonan3; Jiao, Ye3; Zhang, Shubo3; Du, Peisong2,4; Wang, Qiaoling2,4
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| 刊名 | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
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| 出版日期 | 2024-11-01 |
| 卷号 | 332 |
| 关键词 | Tungsten Braze Cast Cu interlayer Microalloying |
| ISSN号 | 0924-0136 |
| DOI | 10.1016/j.jmatprotec.2024.118535 |
| 通讯作者 | Wang, Wanjing(wjwang@ipp.ac.cn) ; Wang, Ji-Chao(wangjc@ie.ah.cn) |
| 英文摘要 | Heterogeneous W-steel joining components will produce brittle intermetallic compounds (IMCs) and significant residual stress in the interface. Adding a Cu interlayer serves as an effective solution. Nevertheless, the strengthening of W-Cu-steel joints is restricted because W-Cu and Cu-steel are members of binary immiscible and finite solid solution systems. Thus, accomplishing interface alloying by overcoming the positive generating energy of insoluble systems and opening up interatomic diffusion channels is a crucial issue to be addressed. In this work, casting and brazing technologies were incorporated into bonding W-Cu-steel to provide a high temperature field, as well as the dissolving and wetting of Cu-based liquid phase to refractory W. It is shown that the superior tensile strength of the W/Cu castings-steel brazed joints (similar to 264 MPa) was achieved, and the joint survived 1000 cycles of thermal fatigue under 1 MW/m(2). To assess the effects of brazing and casting on the W-Cu-steel joint, a detailed analysis was conducted on the mechanism of atomic diffusion in the joint interface. It is considered that in W-Cu joining, casting provided a higher thermodynamic driving force than brazing, thus achieving better interatomic diffusion and a wider microalloying region. Cu-steel joining achieved good alloying and forming dendritic extensions by intergranular diffusion. Based on the process optimization results, the feasibility of preparing the U-shaped first wall (FW) mock-up with W armor using brazing technology was verified. This study provides a new technological path, offering a major design and manufacturing guide for plasma facing components (PFCs). |
| WOS关键词 | IMMISCIBLE TUNGSTEN ; DIFFUSION ; MICROSTRUCTURE ; FE ; COPPER |
| 资助项目 | Postdoctoral Science Foundation[2022M711753] ; Huami Innovation and Venture Fund |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001298946000001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Postdoctoral Science Foundation ; Huami Innovation and Venture Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/134932]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Wanjing; Wang, Ji-Chao |
| 作者单位 | 1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Huaqi,Wang, Wanjing,Wang, Ji-Chao,et al. Improving the interface strength and fatigue property of W-Cu-steel brazed joint via induced interface alloying[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2024,332. |
| APA | Xu, Huaqi.,Wang, Wanjing.,Wang, Ji-Chao.,Zhang, Wenjing.,Chen, Zhen.,...&Luo, Guang-Nan.(2024).Improving the interface strength and fatigue property of W-Cu-steel brazed joint via induced interface alloying.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,332. |
| MLA | Xu, Huaqi,et al."Improving the interface strength and fatigue property of W-Cu-steel brazed joint via induced interface alloying".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 332(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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