摘要
在试样上施加250～600V、1500Hz的高压脉冲电源,在乙二醇-氯化钠电解液中,1Cr18Ni9Ti不锈钢试样作阴极,石墨作阳极,在试样表面产生明显的微区等离子放电,经3～5min处理,试样表面获得厚约0.2mm的强化层。结果表明:1Cr18Ni9Ti不锈钢在经过液相等离子体强化处理后,其显微硬度由心部的175.6HV增加到513.2HV,通过X射线衍射分析得出在试样表面有大量的(Fe-Cr-Ni-C)相存在,从而反映出在本实验条件下,试样表面可产生明显的强化作用;为1Cr18Ni9Ti不锈钢的强化探索了一条新的途径。
The technology which uses high-pressured pulse power source （voltage 250～600V, frequency 1500 Hz） onto stainless steel （1Cr18Ni9Ti）in glycol-sodium chloride electrolyte was studied taking graphite as the anode and the specimen as negative pole. The micro-area plasma was observed on the surface of the specimen. Via treatment of 3-5 min, a layer about 0.2 mm was obtained on the surface of specimen. The results show that the microhardness of the stainless steel is enhanced from 175.6 HV of central section to 513.2 HV of edge; a lot of new tissue（Fe-Cr-Ni-C） is observed on the surface of the stainless steel by the detection of XRD, which strengthens stainless steel on the condition of our test. This research brings a new way to strengthen the stainless steel（1Cr18Ni9Ti）.
出处
《热加工工艺》
CSCD
北大核心
2007年第12期58-59,共2页
Hot Working Technology
关键词
微区等离子体
不锈钢
液相渗碳
电解液
micro-area plasma
stainless steel
liquid carburizing
electrolyte
