摘要
应用非平衡磁控溅射离子镀在低成本高速钢GDL-4进行TiAlN镀层,使用MMS-2A屏显式磨损试验机对涂层滑动磨损性能进行研究,考察了不同的载荷下磨损量和摩擦系数。对比试验表明,随着载荷的增加,GDL-4钢TiAlN涂层磨损量和摩擦系数增加均较小,与W6Mo5Cr4V2钢TiAlN涂层相当,且明显低于未涂层GDL-4。采用SEM对磨损形貌观察发现,GDL-4钢TiAlN涂层磨损失效为层状剥落和轻微的塑性变形共同作用的结果,而GDL-4未涂层表面以犁沟磨损为主。结果表明GDL-4钢TiAlN涂层耐磨性能和W6Mo5Cr4V2钢TiAlN涂层相当。
TiAlN film was coated on GDL-4 high speed steel（HSS） by unbalanced magnetron sputtering ion plating process.The sliding wear tests were carried out on a MMS-2A wear tester.The wear mass loss and friction coefficient were investigated under different loads.The wear mechanism of TiAlN-coated GDL-4 steel was compared with that of TiAlN-coated W6Mo5Cr4V2（M2） steel and uncoated GDL-4 steel.The results show that the wear mass loss and friction coefficient of TiAlN-coated GDL-4 steel are both low and similar to that of TiAlN-coated W6Mo5Cr4V2 steel,obviously less than that of uncoated GDL-4 steel under same loading conditions.The worn surfaces were analysed by SEM.The wear-out failure of TiAlN-coated GDL-4 steel is ascribed to the delamination and slight plastic deformation of the coatings.The wear-out failure of uncoated GDL-4 steel is mainly plough wear.The results indicate the wear resistance of TiAlN-coated GDL-4 steel approaches that of TiAlN-coated W6Mo5Cr4V2 steel.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2008年第5期143-145,共3页
Transactions of Materials and Heat Treatment
基金
贵州省科技攻关项目(200741)
关键词
高速钢
TIALN涂层
磁控溅射
磨损性能
high speed steel
TiAlN coating
magnetron sputtering
wear resistance
