Above this point the hardness can be increased only slightly, because steels above the eutectoidpoint 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。
2
Above this point the hardness can be increased only slightly, because steels above the eutectoidpoint are made up entirely of pearlite and cementite in the annealed state.