双金属复合锤头中铬系耐磨铸铁组织与性能  

Microstructure and Properties of Chromium Wear-resisting Cast Irons Used on Bimetallic Hammerhead

作　　者：郭莹[1] 

机构地区：[1]陕西理工学院机械工程学院,陕西汉中723003

出　　处：《铸造技术》2011年第6期826-829,共4页Foundry Technology

摘　　要：针对矿石破碎机锤头强韧性要求高的特点,研究合金元素对铬系耐磨铸铁组织和性能的影响。实验证明,当合金成分w为1.5%C、9%Cr、1.1%Si1、.3%Mn、1.3%Mo和1.5%Cu时,通过适当的淬火工艺,可获得冲击韧度达到8.2 J/cm2、硬度达58 HRC的铬系耐磨铸铁材质,在保证足够的耐磨性前提下,具有良好的强韧性。For the features of the high demand in strength and toughness of ore crusher hammer,this paper studied the structures and performances of wear-resistant chromium cast irons with different components.The experimental results showed that when the alloying element contents were 1.5% C,9% Cr,1.1% Si,1.3% Mn,1.3% Mo and 1.5% Cu,it would be in the impact toughness of 8.2 J/cm^2 and the hardness of 58 HRC at the same time by appropriate quenching technology,this chromium cast iron can ensure adequate wear resistance in the premise of good strength and toughness（impact strength）.

关 键 词：铬系耐磨铸铁 合金成分 组织 性能 

分 类 号：TG143.9[一般工业技术—材料科学与工程]