Thermodynamic Calculations of Composition of Carbide and Nitride Precipitates and Precipitation Orde

• 作 者: Qu Jinbo Wang Zhaodong Liu Xianghua Wang Guodong
• 机 构: Northeastern University,
• 出 处: Journal of Iron and Steel Research(International)
• 发表日期: 1998年01期
• 关键词: nitride carbide Precipitation steels thermodynamic austenite mixing simultaneous

By means of regular solution sublattice model,the mole fraction and composition of complex carbide and nitride precipitates in Nb-Ti-V microalloyed steels are calculated thermodynamically.Quantitative prediction of precipitation order of carbides and nitrides in complex precipitates is performed according to the calculated results at various austenitizing temperatures.The calculation can provide thermodynamic basis for quantitative prediction of complex precipitation behavior in NbTi-V-containing steels.

By means of regular solution sublattice model, the mole fractions and composition of complex carbide and nitride precipitates in Nb-Ti-V microalloyed steels are calculated thermodynamically. Quantitative prediction of precipitation order of carbides and nitrides in complex precipitates is performed according to the calculated results at various austenitish temperatures.The calculation can provide thermodynamic basis for quantitative prediction of complex precipitation behavior in NbTi-V-containing steels.