摘要
以增强相体积比为60%的Si Cp/6063Al复合材料为母材,首先在母材上磁控溅射钛膜,然后在580℃保温40 min的条件下,采用Al-Si-Mg共晶钎料对复合材料进行真空钎焊.利用扫描电镜、EDS局部能谱分析和XRD衍射的方法对接头的界面组织及断口形貌进行了研究.结果表明,活性钛膜提高了钎料对母材的润湿性,钎焊过程中钎料与镀层、镀层与母材基体界面处均形成了过渡层,且钎料与Si C颗粒间形成致密连接,并在过渡层中发现了Ti C0.981新相.
Ti film was magnetron-sputtered on SiCp /6063 Al composite substrate containing 60% SiC p,and then the SiC p /6063 Al composite was vacuum brazed with Al-Si-Mg foil asfiller metal at 580 ℃ for 40 min. The interfacial microstructure and fracture appearance were investigated by SEM,EDS and XRD. The results show that the Ti film could improve the wettability of filler materials onto the composite materials. Transition layers existed not only between filler and Ti film,but also between the base metal and Ti film. A new phase TiC 0. 981 was found in the interfacial layer,and sound bonding occurred between the filler material and SiC particles.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2015年第4期43-46,82+115,共6页
Transactions of The China Welding Institution
基金
国家自然科学基金资助项目(51245008)
河南省焦作市工业新材料科技项目(2010
49号)
关键词
铝基复合材料
磁控溅射钛膜
真空钎焊
润湿性
aluminum matrix composite
magnetron sputtering Ti film
vacuum brazing
wettability
