摘要
采用物理气相沉积法(PVD)在45钢基体表面沉积了TiN和TiAlN涂层.用3种载荷在摩擦磨损试验机上分别对45钢、TiN和TiAlN涂层进行了摩擦试验,用5种载荷分别对3种试样进行了磨损试验,用表面轮廓检测仪检测了3种试样的体积磨损,用划痕仪测量了涂层的临界载荷.研究结果表明:随着载荷的增大,TiAlN和TiN涂层的摩擦系数有较大的下降趋势,TiAlN、TiN有降低摩擦系数的作用,其中TiN的效果更好.45钢、TiN与TiAlN的磨损量都会随载荷的增大而增大.TiN、TiAlN涂层比45钢有较显著的耐磨损的能力,TiAlN涂层比TiN涂层的抗磨损能力更强.45钢的比磨损率趋近于线性变化,TiAlN、TiN涂层的比磨损率趋近于非线性变化.TiN涂层的临界载荷高于TiAlN涂层的临界载荷.
TiN coatings and TiAlN coatings were deposited on 45 steel substrates by Physical Vapor Depo- sition （PVD）. Friction and wear tests were performed to evaluate performances of 45 steel, TiN and TiAlN coatings using three kinds of loads and five kinds of loads, respectively. Wear loss of 45 steel, TiN coatings and TiAIN coatings had been assessed by means of surface profile detector. The critical loads of TiN coatings and TiAlN coatings were tested by scratch-adhesion tests. Results of the investigation show that the friction coefficients of TiN coatings and TiAlN coatings have larger decreased trends with the in- crease of load. TiAlN and TiN have the functions of decreasing friction coefficient. And the effect of TiN is better than that of TiAlN. Wear loss of 45 steel, TiN and TiAlN increases with increasing loads. TiN coat- ings and TiAlN coatings have the remarkable wear resistance abilities than that of 45 steel. And TiAIN coatings have higher wear resistance performances that TiN coatings. The specific wear rate of 45 steel presents a trend of linear change. TiAlN coatings and TiN coatings approximate nonlinear change. The critical load of TiN coatings is higher than that of TiAIN coatings.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第12期156-161,共6页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金资助项目(51405396)
中央高校基本科研业务费专项资金资助项目(XDJK2013D015)
关键词
摩擦系数
比磨损率
临界载荷
磨损量
Friction coefficient
Specific wear rate
Critical load
Wear loss
