低合金高速钢W3 Mo2Cr4 V2NbNRE辊轮材料的组织和性能  

Microstructure and Properties of Low Alloy High Speed Steel W3 Mo2Cr4 V2NbNRE for Roll Wheel

作　　者：王豫[1] 陈伟[1] 

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243002

出　　处：《钢铁研究学报》2006年第8期43-48,共6页Journal of Iron and Steel Research

摘　　要：针对高速线材轧机上常用的高碳高铬铸钢辊轮耐磨性低,使用寿命短,而普通高速钢辊轮和硬质合金辊轮成本较高的情况,研制出一种使用温度在550℃左右,复合添加氮、铌、稀土的低钨、钼含量的高速钢W3Mo2Cr4V2NbNRE辊轮材料。经1250℃淬火,550℃3次回火后的硬度为HRC64,550℃×20h的热稳定性试验后的硬度为HRC62,具有良好的红硬性。其耐磨性接近普通高速钢W18Cr4V辊轮的水平,而成本比普通高速钢低。The high carbon and high chromium cast steel roll wheel of high-speed wire rod mill have low wear resistance and short service life and high speed steel W18Cr4V and hard alloy roll wheels are expensive. A kind of cheaper low W, Mo high speed steel W3Mo2Cr4V2NbNRE was developed for operation at temperature up to 550 ℃. The steel quenched at 1 250 ℃ and tempered triply at 550 ℃ has a hardness up to HRC 64, which is still up to HRC 62 after holding at 550 ℃ for 20 h. The wear resistance of this steel is similar to that of HSS W18Cr4V.

关 键 词：低合金高速钢 辊轮 耐磨性 红硬性 

分 类 号：TG113[金属学及工艺—物理冶金]