炮弹冲头钢电火花沉积YG8涂层的摩擦磨损行为研究  

Friction and Wear Behavior of Electrospark Deposited YG8 Coatings on Steel of Projectile Body Die

作　　者：韩宇[1] 姜正波[1] 吴非[1] 

机构地区：[1]海军驻沈阳弹药专业军事代表室,辽宁沈阳110045

出　　处：《装备制造技术》2012年第11期19-21,共3页Equipment Manufacturing Technology

摘　　要：应用电火花表面沉积技术将YG8合金沉积到H13钢(炮弹冲头钢)表面,应用显微硬度计、摩擦磨损试验机、扫描电镜和X射线衍射仪,研究了涂层的微观结构、硬度和摩擦磨损行为。研究结果表明,YG8涂层稳定摩擦磨损阶段的平均摩擦系数显著低于H13钢的摩擦系数,具有显著的减摩作用。H13钢的磨损机制主要是严重的磨料磨损,而YG8涂层的磨损机制是微切削磨料磨损、剥层磨损和氧化磨损。YG8 coatings were deposited on H13 steel used for projectile body dies by means of electrospark deposition （ESD）. The coatings were characterized in terms of their microstructure, hardness, friction and wear behavior by micro-indentation tester, tribometer tester, scanning electron microscope, and X-ray diffraction. The results showed that the average coefficient of steady-state friction of YG8 coatings was lower than that of AISI H13 steel, which of significant anti-friction. The wear mechanism in the electrospark deposited YG8 coating could be mainly characterized by micro-abrasive wear, delamination wear and oxidative wear while the dominant wear mechanism for H13 steel was a severe abrasive wear.

关 键 词：H13钢 电火花沉积 摩擦磨损行为 

分 类 号：TG174.4[金属学及工艺—金属表面处理]