活性屏离子渗氮处理对球墨铸铁力学性能的影响  

Effect of Active Screen Plasma Nitriding Treatment on Mechanical Properties of Spheroidal Graphite Cast Iron

作　　者：朱永刚[1,2] 吕刚磊 张智辉[3] ZHU Yong-gang;L Gang-lei;ZHANG Zhi-hui(School of Mechanical Engineering,Zhengzhou Institute of Technology,Zhengzhou 450064,Henan,China;Henan Digital Intelligent Equipment Engineering Research Center,Zhengzhou 450064,Henan,China;Luoyang Railway Information Engineering School,Luoyang 471900,Henan,China)

机构地区：[1]郑州科技学院机械工程学院,河南郑州450064 [2]河南省数字化智能装备工程研究中心,河南郑州450064 [3]洛阳铁路信息工程学校,河南洛阳471900

出　　处：《铸造》2023年第7期805-809,共5页Foundry

基　　金：河南省高等学校重点科研项目(24B460019,24B460016);河南省高等学校青年骨干教师培养计划。

摘　　要：活性屏离子渗氮(ASPN)处理可以扩大球墨铸铁的用途,处理后的球墨铸铁有望在特殊载荷条件下使用。研究了ASPN处理对球墨铸铁力学性能的影响。利用ASPN处理,在样品表面上形成氮化物层,并且能在氮化物层内部进一步形成扩散层。ASPN处理中氮化层的厚度随着处理温度的升高而增加,球墨铸铁的硬度、耐磨性和疲劳强度也随着处理温度升高而提高。By applying active screen plasma nitriding(ASPN)treatment,the use of nodular cast iron was expanded,and it can be expected to be used under special load conditions.In this study,we evaluated the effect of ASPN treatment on the mechanical properties of spheroidal graphite cast iron.With ASPN treatment,a nitride layer was formed on the sample surface and a diffusion layer was formed further inside the nitride layer.During the ASPN processing,the thickness of nitride layer increased as the treatment temperature increased.The hardness,wear resistance and fatigue strength of nodular cast iron will increase with the increase of treatment temperature.

关 键 词：活性屏 等离子渗氮 力学性能 球墨铸铁 

分 类 号：TG143.5[一般工业技术—材料科学与工程]