纳米氟硼酸钾润滑油添加剂的摩擦学机理  

Tribological mechanism of potassium fluoborate nanoparticles as lube additive

作　　者：柳学全[1] 李一[1] 霍静[1] 李红云[1] 李红印[1] 

机构地区：[1]钢铁研究总院,北京100081

出　　处：《粉末冶金材料科学与工程》2013年第3期341-345,共5页Materials Science and Engineering of Powder Metallurgy

基　　金：北京市工业促进发展项目(2007-003)

摘　　要：采用扫描电子显微镜(SEM)、纳米扫描俄歇谱仪(AES)及X射线光电子能谱仪(XPS)对具有良好抗磨减磨性能的纳米氟硼酸钾润滑油添加剂进行摩擦学机理研究。结果表明,基础油添加适量纳米氟硼酸钾颗粒后,其抗磨减摩性能大幅度提高,特别在极压条件(800 N)下磨斑直径可下降50%以上,最大无卡咬负荷(PB值)提高26%。表面分析结果表明,由于在摩擦表面既能形成吸附膜,又能发生摩擦化学反应生成含润滑性能较好的B2O3沉积膜和FeF2渗透层,从而表现出优异的抗磨减摩性能。The tribological mechanism of potassium fluoborate（KBF4） nanoparticles with excellent tribological properties as lube additive was studied by using SEM 、 AES and XPS.The results show that the antiwear and friction-reducing performance of based oil can be obviously enhanced by dispersing a proper fluoborate nanoparticles into the based oil,especially under extreme pressure conditions,the wear scar diameter decreases by 50% and the initial seizure load（PB） increases by 26%.The surface analysis reveals that the KBF4 nanoparticles as lube additive can form not only absorbing film but also B2O3 deposition film and FeF2 permeating layer on the friction surface by the tribochemical reaction,which can modify the lubricating performance strikingly.

关 键 词：纳米氟硼酸钾颗粒 润滑油添加剂 摩擦学机理 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]