共析点

1
eutectoid point
同共晶反应相似，共析反应也是一个恒温转变过程，也有与共晶点及共晶线相似的共析点(eutectoid point)和共析线。d点为共析点，cde线为共析线。
2
cotectic point
... cotectic line 共析线 cotectic point 共析点 cotectic surface 共析面 ...
3
cotectic c point
... cotectic c line 共析线 cotectic c point 共析点 cotectic c surface 共析面 ...

1
其成分特征是碳含量在共析点左右的高碳低锰钢轨钢。
The main characteristics of the rail steel are low manganese and high carbon which content is being closed to eutectoid.
2
高于此点，由于超过共析点钢完全由珠光体和退火状态的渗碳体组成，硬度增加并不多。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
3
由于超过共析点钢完全由珠光体和退火状态的渗碳体组成，因此高于此点硬度增加并不多。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.

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