【作者】 惠卫军； 陈思联； 杨伟宁； 王连海； 戴观文；

【Author】 HUI Wei-jun~1 CHEN Si-lian~1 YANG Wei-ning~2 WANG Lian-hai~3 DAI Guan-wen~4 (1.National Engineering Research Center of Advanced Steel Technology,Central Iron & Steel Research Institute,Beijing 100081,China;2.Special Steel R&D Center,Baoshan Iron&Steel Co.,Ltd.Research Institute, Shanghai 200940,China;3.R & D Center,Fushun Special Steel Co.Ltd.,Fushun Liaoning 113001,China; 4.Development Department,Shijiazhuang Iron & Steel Co.,Ltd,Shijiazhuang Hebei 050031,China)

【机构】 钢铁研究总院先进钢铁材料技术国家工程研究中心； 宝钢股份研究院特钢技术中心； 抚顺特殊钢股份有限公司技术中心； 石家庄钢铁有限责任公司开发部；

【摘要】 本文结合近年来国内外的发展趋势,从化学成分的精确稳定控制、硫化物控制、前轴、半轴和胀断连杆等典型品种用非调质钢的研发及非调质钢的长疲劳寿命化技术等方面对我国近年来非调质钢的部分研发工作进行了综合论述。为了进一步提高非调质钢的技术经济性,非调质钢的少无微合金化元素的低成本化、精确成分和尺寸控制是其中的重要发展方向。此外,随着冶金生产和零件制造技术的不断进步,为了替代调质处理的合结钢等以制造更多的保安件,具有更高的强韧性配合的贝氏体型非调质钢必将得到更多的应用。更多还原

【Abstract】 This paper summaries some of the research,development and applications of microalloyed steels for forging and bar products in China in recent years,concentrating mainly on precision chemical controlling,sulfide controlling,typical steel products for automobile forgings components such as front axle, semi-axle,fracture splitting connecting rod and service lifetime increasing.It is suggested that the development of cost saving medium carbon forging steel with no/less microalloying element,precision chemical elements and bar size controlling are some of the main trends for the purpose of further increasing the performance/cost balance of the steel products.Furthermore,with the development of modern metallurgy technology and component manufacturing technology,more applications of microalloyed bainitic forging steel with high strength and high toughness will be used for the production of steering and driving components.更多还原