Sn-Bi S.J.T.0. Phase Transformation and Applications Page 7/40 Weight Percent Bismuth 300 30 20 30 40 60 60 70 0 90 100 Sn中溶有 271A42*℃ B形成固 250 231.9681℃ L 溶体 200 自由度2 150 138℃ 13 1D0 (Bi) 溶解度变化很 50 大！ (aSn) 0 203040600000 20 30 70 0 100 Sn Atomic Percent Bismuth Bi SJTU Thermodynamics of Materials Fall 2011 @X.J.Jin Lecture 16 Phase Diagram IllPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Fall 2011 © X. J. Jin Lecture 16 Phase Diagram III Page 7/40 Sn-Bi Sn中溶有 Bi形成固 溶体 自由度2 溶解度变化很 大！