The influence of chemical composition on austenitizing temperature was introduced.
介绍化学成分对奥氏体化温度的影响。
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。
The austenitizing temperature was raised by addition of RE and low melting-point alloy which were the elements of strongly promoting and stabilizing the pearlite.
同时稀土与低熔点合金元素的加入，是强烈促进珠光体的元素，具有稳定珠光体的作用，提高了奥氏体化温度；
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