Thermodynamic behaviour of second phases precipitation in vanadium-bearing high-speed steel for railway wheel
A thermodynamic Thermo-calc software was used to calculate the precipitation behavior of second phase in vanadium-bearing high-speed railway wheel steel.The composition of equilibrium phase in low-carbon wheel steel and the influence of temperature and vanadium content on the precipit-ation of the second phase were analyzed in detail.The results show that variation of vanadium content in steel has a great influence on the second phase precipitation in wheel steel,and almost no effect has been observed on the precipitated temperature of the second phase.The temperature variation has small effect on the stable second phase precipitated products in steel,but has great effect on the transient pre-cipitated phase.
vanadium-bearing high speed wheel steelthe second phaseprecipitationthermodynamics
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