S.J.T.U. Phase Transformation and Applications V+xA -VB OxB)T.P av axB XA V-XB =7A OxB)T.P xB XA Pure Pure A B XB> Figure 7.3 Plot of V versus xB to show geometrical relationships in an A-B solution. SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 13 Solution IlPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 13 Solution II A B PT B V x V xV = ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ − , B B PT A V x V xV = ⎟⎟⎠⎞ ⎜⎜⎝⎛∂∂ +