Reactive composite-diffusing brazing of Cf/SiC composite and stainless steel with (Cu–15Ti)+C filler material
Reactive composite-diffusing brazing of Cf/SiC composite and stainless steel with (Cu–15Ti)+C filler material
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DOI：
10.1016/j.msea.2020.139582
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发表时间：
2020-06
期刊：
影响因子：
6.4
通讯作者：
Yonglei Wang;Wanli Wang;Zheng Ye;Jihua Huang;Jian Yang;Shuhai Chen;Xingke Zhao
中科院分区：
文献类型：
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作者：
Yonglei Wang;Wanli Wang;Zheng Ye;Jihua Huang;Jian Yang;Shuhai Chen;Xingke Zhao
采用Cu-15 Ti合金和碳（C）粉末作为钎料，采用反应复合扩散钎焊方法实现了碳纤维增强SiC陶瓷基复合材料（Cf/SiC）与镀镍不锈钢的连接。基于（Cu-Ti）+C + Ni→TiC+（Cu，Ni）ss反应，C颗粒与低熔点Cu-15 Ti合金中的Ti元素反应形成增强TiC，提高了接头的耐热性;镀镍层中的Ni原子扩散到连接层中，进一步提高了接头的耐热性。接头的初熔温度提高到1025 °C，比Cu-15 Ti合金的初熔温度高130 °C。
A novel joining process named reactive composite-diffusion brazing was developed to join carbon fiber reinforced SiC ceramic matrix composite (Cf/SiC) and nickel-plated stainless steel using a powder-filler of Cu–15Ti alloy and carbon (C). Based on reaction (Cu–Ti)+C + Ni→TiC+(Cu,Ni)ss, the C particles reacted with Ti element in Cu–15Ti alloy with low melting temperature formed reinforcement TiC, which improved the joint heat resistance; the Ni atoms in the nickel plating diffused into the joining layer, further improving the joint heat resistance. The initial melting temperature of the joint raised to 1025 °C, which is 130 °C higher than that of Cu–15Ti alloy.