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因省去了淬火、回火工艺,非调质钢具有节约能源资源的特点,使其受到广泛关注,在汽车工业等领域具有很大的应用潜力。从成分优化设计、控锻控冷技术及热处理技术等方面系统阐述了铁素体-珠光体(F-P)型非调质钢强韧化技术的国内外研究概况,重点探讨了控锻控冷技术对组织细化、碳氮化物及晶内铁素体(IGF)析出行为的影响,并对其强韧化技术研究的前景进行了展望。

The non-quenched and tempered steels are attracting more attention due to its advantages of saving energy resources,and they have broad potential applications in automotive industry.In this paper,the research status and progress of strengthening-toughening technologies of ferrite-pearlite (F-P)non-quenched and tempered steels are elaborated from the perspectives of ingredient optimum design,controlled forging and cooling technique and heat treat-ment.The effects of controlled forging and cooling technique on the refinement of microstructure and the precipitation behavior of carbonitrides and intragranular ferrite (IGF)are discussed.And the strengthening-toughening develop-ment prospects of F-P non-quenched and tempered steels are proposed.

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