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于江, 刘浩然, 赵帅彤泽, 杨笑, 张文杰. TIG电弧作用下Ag-Cu-Ti钎料在C/C复合材料上的润湿性分析[J]. 焊接学报, 2020, 41(9): 69-73. DOI: 10.12073/j.hjxb.20191023002
引用本文: 于江, 刘浩然, 赵帅彤泽, 杨笑, 张文杰. TIG电弧作用下Ag-Cu-Ti钎料在C/C复合材料上的润湿性分析[J]. 焊接学报, 2020, 41(9): 69-73. DOI: 10.12073/j.hjxb.20191023002
YU Jiang, LIU Haoran, ZHAO Shuaitongze, YANG Xiao, ZHANG Wenjie. Wettability of Ag-Cu-Ti filler metal on C/C composites under TIG arc[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(9): 69-73. DOI: 10.12073/j.hjxb.20191023002
Citation: YU Jiang, LIU Haoran, ZHAO Shuaitongze, YANG Xiao, ZHANG Wenjie. Wettability of Ag-Cu-Ti filler metal on C/C composites under TIG arc[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(9): 69-73. DOI: 10.12073/j.hjxb.20191023002

TIG电弧作用下Ag-Cu-Ti钎料在C/C复合材料上的润湿性分析

Wettability of Ag-Cu-Ti filler metal on C/C composites under TIG arc

  • 摘要: 通过TIG电弧直接加热方式实现Ag-Cu-Ti钎料在C/C复合材料上的润湿,观察不同保温时间下润湿钎料宏观形貌,并利用SEM和EDS研究接头微观组织和元素分布. 结果表明,在一定保温时间下钎料发生软化,当保温时间为60 min时,钎料在C/C复合材料上润湿效果最好,TiC反应层分布最均匀致密,厚度约为1.3 μm,扩散层厚度最大为5.5 μm. 在向反应界面接近的过程中,钎料中Cu和Ag的含量和保持不变,并有AgTi/CuTi3/Cu4Ti3等脆性化合物的生成. 此外,Ti元素在近界面处发生聚集,在聚集区有Ti2Cu生成.

     

    Abstract: The Ag-Cu-Ti filler metal was wetted on C/C composites by the TIG arc directly. The macroscopic features of the wetting filler metal under different holding times were observed. Besides, the microstructure and element distribution of the joints was analyzed by SEM and EDS, respectively. The experimental results showed that the filler metal can soften under certain holding time. When the holding time was 60 min, the wetting effect of filler metal on C/C composites was the best. The distribution of the TiC reaction layer was the most uniform and dense with a thickness of 1.3 μm. Besides, the maximum thickness of the diffusion layer was 5.5 μm. When the content of copper and silver in the filler metal approaching to the reaction interface remained the same, there were brittle compounds such as AgTi/CuTi3/Cu4Ti3. Meanwhile, Ti elements gathered near the interface and Ti2Cu was produced in the aggregation area.

     

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