A diagram of isothermal decomposition of the β-phase in Ti-22Al-26Nb-0.5Zr-0.4Mo alloy

Transformation of Metastable β-Solid Solution in Alloy VTI-4

“…Therefore, we conducted the first quenching cooling stage in a zinc bath at a temperature of 650°C with a hold of 2 and 8 min and then cooled the test pieces in water. The temperature of this stage was chosen using a diagram of isothermal decomposition, in accordance with which the high-temperature b-phase does not decompose at 650°C within a hold of 8 min [13]. Some test pieces quenched in water right from the temperature of heating for quenching were used as control ones.…”