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;
The results show that the range of austenitizing temperature required for bainite hardening and the hardness of bainite ductile cast iron is increased as vanadium is added.