【作者】 马胜歌； 郭元元； 周祎； 张以忱；

【Author】 MA Sheng-ge~1,GUO Yuan-yuan~2,ZHOU Yi~1,ZHANG Yi-Chen~3 (1.Shenzhen 863 Program R&D Center for Surface Technology,Shenzhen,518029,China; 2.Shenzhen Laibao Hi-tech Co.,Ltd,Shenzhen,518057,China; 3.Northeastern University,Shenyang,110004,China)

【机构】 深圳八六三计划材料表面技术研发中心； 深圳莱宝高科技股份有限公司； 东北大学；

【摘要】 在430℃对AISI304奥氏体不锈钢分别进行离子渗氮(NT)、离子碳氮共渗(NTC)和离子碳氮共渗复合离子渗氮(NTC+NT)处理。利用金相显微镜、辉光放电光谱仪(GDS)、X射线衍射仪(XRD)和显微硬度计测试了试样渗层的横断面形貌、渗层成分、相组成和力学性能。结果表明:AISI304奥氏体不锈钢在430℃进行离子渗处理时,相对于NT处理而言,经NTC和NTC+NT处理可以获得更厚渗层深度和更合理硬度梯度的渗层,但渗层表面耐腐蚀性下降,三种处理得到的渗层中C和N的最大含量分别出现在不同深度。更多还原

【Abstract】 Compare the different treatments of AISI304 austemtic stainless steel about Plasma nitriding,Plasma nitrocarburismg and their combination processes.Metalloscope,Glow discharge spectrometry(GDS),X-ray diffraction(XRD),and microhardness tester were used to evaluate the cross sections morphology,components analysis,phase composition and mechanical properties of the modified layer.The results revealed that the maximum N and C content in the layer are in the different depth,the samples in NTC and NTC+NT have a thicker layer and more favourable hardness gradient than the sample in NT.But the corrosion resistance,of the samples is lower.更多还原