【摘要】 通过铺展实验研究Ti-Cu合金钎料中Ti含量对合金钎料润湿性的影响,试验结果表明,当Ti的质量分数为12%~16%时,合金钎料对C/C复合材料坯体有好的润湿性.用Ti-Cu合金钎料对C/C复合材料进行真空钎焊,研究钎焊接头的组织成分及分布.结果表明,钎料层与C/C复合材料结合紧密,Ti在钎料层与C/C复合材料的界面处富集并形成TiC,同时对Ti-Cu合金钎料的润湿性机理进行了分析.更多还原

【Abstract】 By using the spreading test method,the effect of Ti additives on the wettability of Ti-Cu alloys was studied.The alloy with 12%~16% titanium exhibited good wettability on the surface of C/C composite green body.Vacuum brazing of C/C composite using Ti-Cu solder alloys was carried out.The microstructure of the welded joint was studied.A diffusion layer formed between the filler metal layer and C/C composite,in which TiC phase was found due to the diffusion of Ti.The mechanism of the improvement of wettability was also analyzed.更多还原