用塑性流线理论对碳钢渗硫表面摩擦特性的研究  

Frictional performances of sulphurized layers on carbon steel using plastic flown line theory

作　　者：高伟[1] 刘鸣[2] 刘镇昌[2] 

机构地区：[1]青岛科技大学机电工程学院,山东青岛266042 [2]山东大学机械工程学院,山东济南250061

出　　处：《山东大学学报（工学版）》2003年第5期491-493,501,共4页Journal of Shandong University（Engineering Science）

摘　　要：建立了碳钢渗硫表面和非渗硫表面的多球凸峰面接触模型 ,模型中 ,凸峰高度按高斯函数分布 .用塑性流线理论分析了渗硫层的摩擦系数 .计算结果表明 :摩擦系数随载荷的增加而增加 ;相同粗糙度下 ,磨削加工的摩擦系数比车削加工的摩擦系数大 ;摩擦系数随着渗层厚度的增大而增大 .从减小摩擦系数的角度来考虑 。The multi-asperity sphere-shape model for surface contact between sulphurized layer and unsulphurized layer is established, in which the height of sphere-shape asperities follows the Gaussian distribution. The frictional coefficients of sulphurized layers are analyzed by using plastic flown line theory. The results show that the frictional coefficient increases with the load, the frictional coefficient of ground surface is higher than that of turned surface in case of the same roughness. The thicker the sulphurized layer is, the higher the frictional coefficient is. From the viewpoint of reducing frictional coefficient, the thickness of sulphurized layer should be smaller.

关 键 词：渗硫 薄膜 摩擦系数 凸峰 

分 类 号：TH117.1[机械工程—机械设计及理论] TG156.84[金属学及工艺—热处理]