Low-Temperature Brazing of Titanium Using Al-Based Filler Alloys

Table 3

Recent studies of ultrasound-assisted brazing of Ti/Ti and Ti/Al joints by Al-based fillers.

Reference	Materials	Heating method and best conditions (all in air)	Shear strength (MPa)
[37]	Parent metal: Ti Grade 5; filler metal: TiBraze Al-665(Al–2.5Mg–0.3Cr)/100	Induction brazing, 660°C, (5 sec, 84 W) USV, no holding time	50–60
[39]	Parent metals: Ti Grade 5/Al1060; filler metal: Al–12Si	(A = 6 , 20 kHz) USV, 620°C, 4 sec USV + holding for 15 or 5 min + 4 or 0 sec USV	∼68
[38]	Parent metal: Ti Grade 2; filler metal: TiBraze Al-665A (Al–2.5Mg–0.3Cr)/50	Induction brazing, (25 kHz, 120 W) USV, 670°C, holding for 5 min at 560°C, then heating to 670°C and holding for 3 min, applying USV for 6 s	∼64
[55]	Parent metals: Ti Grade 5/Al6061; filler metal: Al–9.4Si–10Zn–10Cu–2Ni	(A = 6 , 20 kHz) USV, 560°C, 4 sec USV + holding for 60 min + 4 sec USV	∼43
[55]	Parent metals: Ti Grade 5/Al6061; filler metal: Al–15Sn–8.2Si–8.5Zn–8.5Cu–1.7Ni	(A = 6 , 20 kHz) USV, 560°C, 4 sec USV + holding for 15 min + 4 sec USV	∼76