硼含量及热处理对铁基耐磨合金摩擦磨损性能的影响  

Effect of Boron Content and Heat Treatment on Wear Resistance of Fe-based Wear-resistant Alloy

作　　者：包蕴斌 叶旭初[1] 陈川辉[1] 柏杨[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《热加工工艺》2015年第20期200-203,共4页Hot Working Technology

摘　　要：研究了不同硼含量耐磨合金钢的力学及耐磨性能。硼含量0.01%~0.04%时,微量硼可细化铁素体晶粒,随硼含量的增加,其耐磨性及冲击韧度均有一定程度的提升;当硼含量达到1%后,其硬度均在60 HRC以上;经空淬、高温回火热处理后,与高铬铸铁相比,其耐磨性能普遍提高2倍以上。The mechanical and wear properties of wear-resistant alloy steel with different boron contents were studied.When the boron content is 0.01%-0.04%, ferrite grains have been refined. While the boron content increases, the wear resistance and impact toughness have a certain degree of improvements. Boron can significantly improve the wear resistance of the steel. When the boron content reaches 1%, the hardness is higher than 60 HRC. After quenched in air and tempered at high temperature, the wear resistance increases 2 times higher than that of high chromium cast iron.

关 键 词：硼钢 耐磨性 晶粒细化 

分 类 号：TG156.3[金属学及工艺—热处理]