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.

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。

youdao

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.

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。

youdao