[問卦] 有沒有包晶反應的八卦?消失
包晶反應 (Peritatic reaction)
好像是合金凝固到一定溫度時,已結晶出來的一定成分的舊固相
會和剩下的液相發生反應聲成另一種新固相
所以最終的凝固的合金會是新的包舊的
好像讀鋼鐵的很懂包晶诶
但我根本是有聽沒有懂
為啥好好的要把人家包住??
有沒有鋼鐵系的可以出來解釋一下包晶?
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http://imgur.com/7Uuq1DN
![](https://i.imgur.com/7Uuq1DN.jpg)
![](https://i.imgur.com/MhVAFHx.jpg)
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