一种亚稳态铁酸盐和碳化铁集合体，由奥氏体在低于珠光体温度但高于马氏体初温时变性而形成。
A metastable aggregate of ferrite and cementite resulting from the transformation of austenite at temperatures below the pearlite but above the marten site start temperature.
钢的含碳量越高，获得全部板条马氏体的临界奥氏体温度越高。
When austenitizing temperature is higher than a critical temperature, full lath martensite can be obtained in medium and high carbon steel.
钢的含碳量越高，获得全部板条马氏体的临界奥氏体温度越高。
When austenitizing temperature is higher than a critical temperature, full lath martensite can be obtained in medium and high carbon steel.
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