含有化合物相的共晶转变理论模型

许军锋, 张宝东, Peter K Galenko

Model of Eutectic Transformation Involving Intermetallic Compound

XU Junfeng, ZHANG Baodong, Peter K Galenko

图1 含有化合物相的相图示意图 (a) kα≠ 0, kβ≠ 0 (b) kα = 0, kβ≠ 0

Fig.1 Phase diagrams containing compound phases(TE is the eutectic equilibrium temperature; CE is the eutectic concentration; mα and mβ are theliquidus line slopes on α-phase and β-phase, respectively; Csα and ΔCsβ are the concentrations in the solid of α-phase and β-phase, respectively;ΔCα, ΔCβ are the concentration differences between phases α, β and eutectic point (TE, CE) respectively; ΔC0 is concentration differences between α phase and β phase; CB is right-hand-side concentration of phase diagrams; kα, kβare solute distribution coefficients of α phase and β phase, respectively)