摘要
将高熔点金属Ti电极置入含碳的液相介质中,利用脉冲放电所产生的低温高能等离子体在45钢基体上沉积TiC硬质金属陶瓷涂层,并对液中放电沉积TiC的工艺进行了正交优化设计。结果表明,峰值电流对TiC的形成与性能的影响最为显著,其次是脉冲宽度,再次是脉冲间隔和极间距。最佳制备工艺为:峰值电流5A,脉冲宽度12μs,脉冲间隔120μs,极间距离30μm。
Ti electrode of high-melting metal was put into the liquid of kerosene, a ceramic coating of TiC was deposited on the surface of 45 steel using low temperature plasma produced by pulse discharge. The preparation process of TiC coating was designed by orthogonal test. The results show that the effects of peak current on the formation of TiC layer and properties are the best notable, next pulse on-time, then pulse off-time and space between electrodes. The optimum process parameters are peak current of 5 A, pulse on-time of 12μs, pulse off-time of 120μs and space between electrodes of 30 μm.
出处
《热加工工艺》
CSCD
北大核心
2008年第6期47-49,共3页
Hot Working Technology
基金
广东省自然科学基金资助项目(030032)
关键词
脉冲放电
TIC涂层
工艺优化
pulse discharge
TiC coating
process optimization
