采用AgCu共晶钎料钎焊SiO2陶瓷与TC4钛合金,形成了良好接头。通过扫描电镜(SEM),能谱分析(EDS)以及X射线衍射分析(XRD)明确了接头生成物,确定了接头界面结构为TC4/Ti2Cu+Ti(s.s)/TizCu/TiCu+TisCu4+Ag(s.s)/Ag(s.s)+Cu(s.s)+Ticu/TiCu+Cu2Ti4O/Al2(SiO4)O+TiSi2/SiO2。研究了钎焊温度和保温时间对界面的影响,结果表明:当钎焊温度为850℃,保温时间为5min时,接头抗剪强度最高,其值为30MPa。
SiO2 glass ceramic was successfully joined to TC4 alloy u filler foil by vacuum brazing. Joint interface was identified by sever EDS and XRD. The typical interface structure is TC4/Ti2 Cu + Ti (s. s)/Ag(s, s) +Cu(s. s) + TiCu/TiCu+ Cu2Ti40/Al2 (SiO4)O+ sing a commercially available AgCu al analysis methods, such as SEM, (s. s)/Ti2Cu/ TiCu+Ti3Cu4 +Ag TiSi2/SiO2 from TC4 alloy to SiO2 glass ceramic side. The effect of brazing parameters on joint interface was studied. According to the experimental results, the joint brazed at 850℃ for 5min has the maximum shear strength of 30MPa.