两相区的组成和数量解析 S.J.T.U. Phase Transformation and Applications Page 11/40 1050 1000 950 900 个 850 Spinodal\ 2 800 line 760K 750 700 650 600 .25 0.75 1XB=0.1 xB十 02:XB-0.9 Figure 9.15 The miscibility gap,showing spinodal line. I:XB-0.2 I:xg=0.5 体系 I:X3=0.2 l:X3=0.5 平衡组成 01 d2 01 02 X3=0.1 X3=0.9 X3=0.1 3=0.9 平衡相的量 7/8 1/8 4/8 4/8 SJTU Thermodynamics or Matenais Spnng 2008 人.uJ. Lecture 17 Pnase Dlagram m
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 17 Phase Diagram III Page 11/40 两相区的组成和数量解析 760K I: xB=0.2 II: xB=0.5 α1: xB=0.1 α2: xB=0.9 体系 I：xB＝0.2 II：xB＝0.5 平衡组成 α1 α2 α1 α2 xB＝0.1 xB＝0.9 xB＝0.1 xB＝0.9 平衡相的量 7/8 1/8 4/8 4/8
Peritectic Phase Diagrams S.J.T.U. Phase Transformation and Applications Page 12/40 Peritectic transformation A liquid phase and a solid phase can combine to form an entirely new solid phase Weight percent carbon 0 0.2 0.4 0.6 0.8 1600 liquid+solid=solid 1538℃ 150 liquid +solid,solid, 0e =245 L+Y 相律？ 1400 1394C 130 0 2 3 Fe Atomic percent carbon Figure 9.17 The binary phase diagram for carbon(graphite)and iron. SJTU Thermodynamics of Materials Spring 2008 ©X.J.Jin Lecture 17 Phase Diagram Ill
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 17 Phase Diagram III Page 12/40 Peritectic Phase Diagrams Peritectic transformation A liquid phase and a solid phase can combine to form an entirely new solid phase α β liquid + solid = solid 相律？ δ γ liquid solid =+ solid
Mg-Pb S.J.T.U. Phase Transformation and Applications Page 13/40 Weight Percent Lead 02040608070 90 100 700 形成稳定化合 65o°c 600 物 6495+1c L 300 (Mg)5 466.2e 19.1 ainjeJadmaL 4D0 327,5℃ 300 24879c (Pb 200 1D0 0 10 0 30 40 60 0 70 80 0 100 Mg Atomic Percent Lead Pb SJTU Thermodynamics of Materials Spring 2008 ©X.J.Jin Lecture 17 Phase Diagram Ill
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 17 Phase Diagram III Page 13/40 Mg-Pb 形成稳定化合 物