摘要
分析了国内外非调质钢在汽车零部件领域的发展历程及现状,重点分析了非调质钢的强韧化技术措施、硫化物形态和分布的控制技术,以及材料偏析的控制措施。非调质钢强韧化主要通过成分及生产工艺优化和组织优化两个途径实现,硫化物形态和分布可以从冶炼、凝固和轧制等过程进行调控,硫化物偏析可以从凝固过程和连铸工艺进行改善。未来,随着非调质钢市场的发展及品种需求的进一步提升,非调质钢将向着多品种化、微合金高强化、易切削化、高速化及高可靠性方向进一步发展。
In this paper the development history and status quo of non-quenched and tempered steel for making auto parts worldwidely had been described,and the technologies such as strengthening&toughening,sulfide form and distribution control,and material segregation control had been highlighted.The strength and toughening of non-quenched and tempered steel are mainly realized through two approaches:composition and production process optimization and microstructure optimization.Sulfide morphology and distribution can be regulated from smelting,solidification,and rolling processes,and sulfide segregation can be improved from solidification process and continuous casting process.In the future,with the development of the non-quenched and tempered steel market and the further improvement of variety demand,non-quenched and tempered steel will further develop in the direction of multivariety,micro-alloying high strengthen,easy cutting,high speed,and high reliability.
作者
刘年富
沈伟
田钱仁
付建勋
Liu Nianfu;Shen Wei;Tian Qianren;Fu Jianxun(Center for Advanced Solidification Technology(CAST),State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China;Baowu JFE Special Steel Co.,Ltd.,Shaoguan 512123,Guangdong,China)
出处
《钢铁钒钛》
CAS
北大核心
2024年第2期115-124,共10页
Iron Steel Vanadium Titanium
基金
“十三五”国家重点研发专项(2018YFB0704403)。
关键词
汽车用钢
非调质钢
组织
强韧化
硫化物
automobile steel
non-quenched and tempered steel
microstructure
strengthening and toughening
sulfide
