Amorphous TiZr - base metglas® brazing filler metals

Vacuum-furnace brazing of C103 and Ti–6Al–4V with Ti–15Cu–15Ni filler-metal

“…The C103 parentmetal dissolved slightly into the molten liquid filler-metal during brazing. One of the reasons for adding Cu and Ni into the filler-metal is to decrease the melting point of the filler-metal [17,18,21]. Once the C103 parent-metal partially dissolves into the molten liquid filler-metal and dilutes the Cu and Ni concentration of this zone, the melting point of the molten metal in Zone II raises, and that forces this zone to solidify before cooling.…”

Brazing of Si3N4 with amorphous Ti40Zr25Ni15Cu20 filler

“…In addition, previous results showed that Cu-Ti, Cu-Zr, Ni-Zr, Ni-B, Ti-Cu-Ni melt could be solidified to form an amorphous alloy in certain conditions [28][29][30]. However, research on joining of Si 3 N 4 ceramic using amorphous filler is still limited [31,32].…”

Experimental investigation of Zr-rich Zr–Zr2Ni–(Zr,Ti)2Ni ternary eutectic system

“…3,4 Conventionally, Ni and Cu, as a melting point depressant, have been added to Ti and Zr, and many filler alloy systems were subsequently reported by the addition of Ni and Cu. [2][3][4][5]14 According to the work reported by Shapiro et al, 4 it is considered that new Zr-Ti-Ni-based filler alloys without copper can be potential substitutes for conventional titanium-brazing filler metals such as copper-containing Ti(Zr)-Cu-Niand Ti-Cu-Ni-based alloys, because the copper can form deteriorative brittle intermetallics at the joint by reaction with Ti base metal. In particular, to use Zr-Ti-Ni alloys for brazing Ti alloys, the Zr-Ti-Ni alloys should have a low melting point, as low as possible since Ti alloy should be brazed below its beta transus temperature.…”

“…Ni containing Ti-and Zr-based binary or ternary systems have been investigated for a development of filler alloys [2][3][4][5] or a study of metallic glasses [6][7][8][9][10][11][12][13] due to its deep eutectic characteristics. As a filler alloy for brazing of Ti alloys, low melting Ti-Zr-based filler alloys are being considered as the best choice for filler metals, especially for joints that should operate at high temperatures and highly corrosive environment because the low melting Ti-Zr-based filler alloys are compatible with Ti base metal, which results in transient liquid phase diffusion bonding of the joint.…”