Microstructure and mechanical properties of TiAl alloy joints vacuum brazed with Ti–Zr–Ni–Cu brazing powder without and with Mo additive

Brazing ZrB2-SiC ceramics to Ti6Al4V alloy with TiCu-based amorphous filler

“…Due to lower Gibbs free energy of the TiCu compared to the one of the Ti 2 Cu in 910℃ [31], the former was ready before the precipitation of When the solubility of Ni and Cu in Ti reached their limits, the Zr 2 (Cu, Ni) and Ti 2 (Cu, Ni) were produced. Meanwhile, an eutectic reaction of residual liquid phase transformed to β-Ti and (Ti, Zr) 2 (Cu, Ni) and eutectoid decomposition of β-Ti to α-Ti and (Ti, Zr) 2 (Cu, Ni) were under process until the solidification of the welding [32], as shown in Fig.5i. Fig.…”

“…Cu and Ni have a strong affinity to Ti (Zr), and theyare apt to form (Ti,Zr) 2 (Cu, Ni). Hence, a eutectic reaction occurs during brazing process based on Cu-Ni-Ti (Zr) ternary phase diagramas L→β-Ti + (Ti,Zr) 2 (Cu, Ni)[22]. According to the binary diagrams, the maximum solubilities of Cu and Ni in the β-Ti are as high as 17 at.…”

Brazing Ti-48Al-2Nb-2Cr Alloys with Cu-Based Amorphous Alloy Filler

“…% Al. It has been reported that Al is α-Ti stabilizer, while Cu and Ni are β-Ti stabilizer elements [36]. Therefore, spot C was inferred to be α-Ti.…”

Mechanical Properties of Ti-alloy Joint with Ti₂₀Zr₂₀Cu_60-xNi_x(x = 10, 20, 30, 40 and 50) Filler Metal

“…There were first report of high glass forming ability (GFA) of Cu-Ti based alloys namely, Cu 47 Ti 34 Zr 11 Ni 8 and Cu 47 Ti 33 Zr 11 Ni 8 Si 1, which can be cast fully amorphous in the rod forms of 4 and 7 mm in diameter [1][2][3][4][5]. Afterwards, much effort were made in order to develop novel Cu-Ti based bulk glassy alloys possessing more GFA and improved mechanical properties [6,7].…”