共析点

强磁场对Fe-0.76%C合金共析点的影响

Effect of high magnetic field on eutectoid point in Fe-0.76 % C alloy

对于合金钢，凡是含有能使Fe-C状态图共析点左移的合金元素的钢均适用磁场淬火工艺。

Besides , alloy steels containing elements which move eutectoid point to the left in Fe-C equilibrium diagram are also suitable for magnetic field quenching .

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 .

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 .

在实验相图中确定了新的化合物（n-C12H25NH3）（n-C16H35NH3）ZnCl4的存在，并确定了两个不变的共析点，共析点温度分别为70和73℃。

In the phase diagram new materials ( n-C_ 12H_ 25NH_3 )( n-C_ 16H_ 33NH_3 ) ZnCl_4 and two eutectoid invariants were observed , two eutectic points temperatures are about 70 and 72 ℃ .