摘要
研究了不同化学成分和热处理工艺对筛网用低碳硅—铌双相钢显微组织、力学性能及冷拔性能的影响。结果表明临界区淬火时得到的含５％～８％（体积分数）边界马氏体的盘条与双重淬火时得到的含１４％～２０％纤维状马氏体的盘条具有相同的强度和塑性；经３００℃充分回火，可消除时效对性能的影响；拉拔率达９０％以上，具有良好的成型性及耐磨性能；用该钢试制的筛网，寿命远高于低碳钢和高碳弹簧钢研制的筛网。
Effect of chemical composition and heat treatment on the microstructure,mechanical properties and drawability of low carbon SiNb dualphase steels for screens has been investigatedThe results show that the wirerod containing 5 %8 % volume of grain boundary martensite by critical area quenching possesses the same strength and ductility as that with 14 %20 % volume content of lamellar martensite by double quenchingThe full temper at 300 can eliminate effect of aging on properties,the good formability and wearresistant can be got when the drawing ratio is above 90 %The service life of the wearresistant screens made of low carbon SiNb dualphase steel wires is much longer than that made of plainlowcarbon steel and highcarbon spring steel wires
出处
《钢铁》
CAS
CSCD
北大核心
1999年第4期48-51,共4页
Iron and Steel
关键词
双相钢
边界马氏体
筛网
钢丝
耐磨筛网
淬火
dualphase steel,critical area quenching,grain boundary martensite,screen
