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近年来市场对更高强度级别、更高初塑性、更长寿命的高端钢铁材料产品的需求增强,针对这一发展需求,本文提出了通过多步亚临界热处理的新工艺在低碳低合金体系下获得稳定残余奥氏体的方法,并以此形成一套完整的多相组织及残余奥氏体的调控路线,以获得第三代高强度高塑性低合金原型钢。
In recent years, the demand for high-end steel material products with higher strength, higher initial plasticity and longer lifetime has been enhanced. In response to this development demand, this paper presents a new technology of low carbon and low alloy system through a new multi-step subcritical heat treatment process, To obtain a stable method of retained austenite, and to form a complete set of multi-phase austenite and retained control lines to obtain the third generation of high strength low plasticity prototype steel.