Abstract:

Research on effect of TiN nano additive on lubricity using MRS-10A Computer  Controlled  Hydraulic  Four-ball   Friction Tester  MRS-10A in condition  the content of  the nano additive in the range from 0.25%~1%.In  addition,take  advantage of Grinding Spot Measurement System,Laser  Scanning  Confocal  Microscope OLS1100  and EDS Measurement  Instruments to analyze its frictional  wear behavior and self-repair characteristic.Surveys 0.5% TiN performance improving lubricant  on  experimental Diesel engine with diferent  speed,measuring the impact of additive lubricant  in the engine characteristic outer curve.Experimental results show that:0.5% of  TiN nano additive in lubricant have improved the lubricant quality significantly:anti-corrosion,self-repair,reduce heat by decreasing friction work,reducing lubricant temperature,improved operating characteristics,power and torque of the engine,reducing specific fuel costs,there  by achieving the longevity of the engine and more energy-saving  compared to the normal lubricant.

Key words: nano , materials；self-repairing；additive；engine

摘要：

控制纳米TiN添加量处于0.25%~1%范围内，利用MRS-10A四球摩擦试验机研究其对润滑油性能的影响。利用磨斑测量系统、激光共聚焦扫描显微镜OLS  1100和EDX能谱仪测试分析含纳米TiN润滑油的摩擦磨损及修复性能。在柴油发动机试验台上考察含有0.5%纳米TiN的润滑油对发动机运转性能的改善，在不同转速条件下检测润滑油添加剂对发动机外特性的影响。试验结果表明：含有0.5%纳米TiN的润滑油比基础油的抗磨减摩及自修复性能更好。纳米TiN润滑油添加剂能显著提高润滑油质量，减小发动机摩擦功，降低机油温度，改善发动机的运转性能，提高发动机的功率和转矩，降低耗油率，从而达到延长发动机的使用寿命和节约能源的目的。

关键词: 纳米材料, 自修复, 添加剂, 发动机