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三、 简单 三 元共晶相图

三、 简单 三 元共晶相图. 共晶转变:. 一个液相 ,同时结晶出两个(或三个)固相. —— 共同结晶. T (℃). L + . 183℃. Pb. Sn. 共晶线: M-E-N. T A. L. 液相线: T A —E—T S. T S. L + . . 线:. . 固相线: T A —M—E—N—T S. M. E. N.  + . 固溶度曲线: MF 、 NG. F. G. 共晶点: E. 点:. 最大溶解度点: M 、 N. T (℃). A. B. 简单共晶:. C. B. B.

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三、 简单 三 元共晶相图

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  1. 三、简单三元共晶相图 共晶转变: 一个液相 ,同时结晶出两个(或三个)固相 ——共同结晶

  2. T(℃) L+  183℃ Pb Sn 共晶线: M-E-N TA L 液相线: TA—E—TS TS L +   线:  固相线: TA—M—E—N—TS M E N +  固溶度曲线: MF、NG F G 共晶点: E 点: 最大溶解度点: M、N

  3. T(℃) A B 简单共晶:

  4. C B B A A C 1. 简单三元共晶相图分析

  5. A B C

  6. B A C

  7. 立体图: 相区的立体图 曲面的立体图 曲线的立体图 点

  8. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C

  9. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C L  B L  A L  C

  10. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C L  A + B L  A + C L  B + C

  11. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C A + B + C L  A + B + C

  12. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C 立体相区 复习

  13. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C 一个 单相区: L 三个 双相区: L + A、L + B、L + C 四个 三相区: L + A + B、L + B +C、 L + A + C、A + B + C 一个 四相区: L + A + B + C

  14. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E 一 C3 C2 C1 C TA TB E1 L  B L  A E1 E2 E TC E3 E2 L  C E3 E E

  15. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C 液相面 ——初生相开始析出

  16. A1 B1 E TA C1 TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C L  A + B 固相面 L  A + B + C L  A + C L  B + C ——三相平衡共晶转变结束 四相平衡共晶

  17. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C E1 中间面 A2 B2 A1 B1 L  A + B ——三相平衡共晶转变开始 E A3 B3 A1 E2 E3 E B1 E C3 L  B + C C1 C2 L  A + C C1

  18. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C L  A + B E1 L  B + C E2 E3 L  A + C E ——三相平衡共晶线

  19. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C ——四 相 平 衡 共 晶 点

  20. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B E A C3 C2 C1 C 立体相区 复习

  21. TA TB A3 B3 E1 A2 B2 A1 B1 E2 TC E3 B A E C3 C2 C1 C 曲面 复习

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