介绍化学成分对奥氏体化温度的影响。
The influence of chemical composition on austenitizing temperature was introduced.
奥氏体化温度和时间影响等温转变产物中残余奥氏体的稳定性；
The stability of retained-austenite is affected by austenize temperature and time.
随奥氏体化温度的升高，实验钢的硬度和冲击韧度先升高后降低；
The hardness and impact toughness increase at first and then drop down with the increases of quenching temperature.
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