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A NOVEL MODIFICATION TECHNIQUE FOR METAL SURFACE 总被引:7,自引:0,他引:7
A novel solultion-arc discharge surface modi-fication technique has been introduced in this paper, In thismodification technique,the speed of mass transport in surfaceand diffusion layer is much higher than that of other ways,such as ion implantation,PVD,CVD,PCVD,glow dischargeplasma treatment,etc.The solution-arc discharge plasma be-longs to a plasma in high air pressure.Its cathode electricfield,electric charge densiry and current density are muchlarger than those of low temperature plasma.The voltage-current characteristic has been measured.Mechanical and elec-trochemical propertiks of same steel treated with solution-arcdischarge have been studied.As to the mechanism of thts tech-nique,an analysis has been given. 相似文献
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研究了H13钢淬火冷却工艺对其韧性的影响及其原因。结果表明,采用二级盐浴分级淬火冷却比采用一级盐浴分级淬火冷却和空冷淬火能更有效地减少H13钢热处理后的“贝氏体脆性”,获得更高的韧性和更小的变形。 相似文献
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快速表面改性技术研究 总被引:17,自引:4,他引:17
本文介绍一种快速表面改性技术,碳氮共渗时间只需3 ̄5min,共渗层厚度即达0.2 ̄0.4mm。本文还分析了放电过程及共渗机理、试样温度与电压的关系以及渗层硬度,得出渗层厚度与电压及时间的关系式。 相似文献
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