微量元素在耐磨铸钢榨螺中的作用  

Effects of Trace Elements on the Properties of Pressing Bolts for Wear-Resistant Casting Steel

作　　者：宋延沛[1] 谢敬佩[1] 罗全顺[1] 朱锦洪[1] 毕玉霞 

机构地区：[1]洛阳工学院材料工程系,河南洛阳471039

出　　处：《钢铁研究学报》2000年第2期63-67,共5页Journal of Iron and Steel Research

基　　金：河南省科技发展计划资助项目

摘　　要：研究了微量元素在耐磨铸钢榨螺中的作用。结果表明 :微量元素能细化组织 ,有利于淬火组织中位错亚结构的形成 ,并能改善夹杂物的形态、大小及分布。与未加微量元素的试验钢相比 ,在硬度基本相同的情况下 ,无缺口冲击韧性和强度分别提高 192 %和 16 % ,伸长率提高 6 5 %。用该试验钢生产的榨螺使用寿命比原渗碳钢榨螺提高了The effects of trace elements on the properties of pressing bolts for wear resistant casting steel was investigated. The results show that trace elements could refine microstructures, spur the formation of substructures (e.g. dislocations) in quenched microstructures, and improve the shape, dimension and distribution of inclusions. Compared with the steel without adding trace elements, non breach impact toughness, UTS and elongation were increased by 192 %, 16 % and 65 % respectively, but hardness was not obviously changed. The tested steel has been used to produce pressing bolts. The service life of the bolt was increased by more than two times, compared with the carburizing steel.

关 键 词：耐磨铸钢 榨螺 微量元素 组织 性能 油料浸出机械 

分 类 号：TG142.1[一般工业技术—材料科学与工程]