掺Ti／Cu中间相碳合金作为润滑油添加剂的减摩抗磨性能

Anti--friction and Wear Resistance Effect of Mesophase Carbon Doped with Titanium and Copper as Lubricating Additive

采用机械合金化法将金属Ti、Cu掺杂到煤焦油沥青碳质中间相中，制备出掺Ti／Cu中间相碳合金。利用XRD分析产物的晶体结构，并测试产物作为润滑油添加剂的减摩抗磨性能，用SEM观察摩损表面的形貌。结果表明：机械合金化掺杂金属Ti、Cu后，中间相碳合金的结晶有序度下降；中间相碳合金作为润滑油的添加剂具有良好的高温减摩抗磨性能，且随着栽荷的增大，其减摩抗磨性能更加显著。

Incorporation of metallic elements, titanium and copper, into carbonaceous mesophase （CM） was performed through mechanical alloying in a ball mill apparatus. The structures of the rawCM as well as the Ti/Cu--added CM were characterized by X--ray diffraction. The tribological behavior of the Ti/Cu--added CM as lubricating additive was investiga- ted. The results show that, compared with the raw CM, the Ti/Cu--added CM exhibits a drop in the crystallinity and a tran- sition to the amorphous. The Ti/Cu--added CM as lubricating additive displays an obvious high temperature anti--friction and wear resistance effect, and the lager the applied load, the lower the friction coefficient and the wear severity.