本文在新、旧工艺对比试验的基础上,提出了提高钢的强韧化方法。对低合金渗碳钢而言,采用低温短时间加热淬火工艺,可获得板条状马氏体组织,并能得到较高的强度和韧性。从马氏体形态学的观点出发,进一步发挥零件强韧潜力有着重要意义。 Based on the comparative experiments of new and old technology, this paper puts forward the methods of improving the toughness of steel. For low-alloy carburized steel, the use of low temperature and short-time heating and quenching process, lath martensite can be obtained, and can get higher strength and toughness. From the point of view of martensite morphology, it is of great significance to further develop the robust potential of parts.