陈红宇, 刘正东, 林肇杰, et al. Thermodynamic Calculation and Analysis on Equilibrium Phases Transformation in SA508-3 Steel[J]. Special Steel, 2007, 28(2): 19-21.
陈红宇, 刘正东, 林肇杰, et al. Thermodynamic Calculation and Analysis on Equilibrium Phases Transformation in SA508-3 Steel[J]. Special Steel, 2007, 28(2): 19-21.DOI:
precipitated temperature and each phase content in SA508-3 steel -0. 19C
0.01~ 0.22Si
1.40~1.58Mn
0.65~0.76Ni
0.50~0.55Mo have been calculated by using Thermo-Calc thermodynamic soft- ware
and effect of Si and Mn-Ni-Mo content on precipitated phases in the steel was studied. The calculated results show that main equilibrium precipitates in SA508-3 steel are alloying cementite
M
C₃ and Mo carbide. There is no obvious effect of Si content change on precipitated temperature and precipitated amount of each phase. With increasing Mo content the brittle precipitated phases decreased while there is not obvious effect on alloying cementite precipitates. The optimum tempering temperature for SA508-3 steel is 643~678℃.