电弧等离子体辅助渗氮处理cr12mov钢的组织结构及硬度

《电弧等离子体辅助渗氮处理cr12mov钢的组织结构及硬度》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/288382609MicrostructureandhardnessofCr12MoVsteeltreatedbyarcplasma-assistednitridingprocessArticleinCailiaoRechuliXuebao/TransactionsofMaterialsandHeatTreatment

2、·November2012CITATIONSREADS2865authors,including:YanhuiZhaoHaoDuChineseAcademyofSciencesChineseAcademyofSciences28PUBLICATIONS239CITATIONS59PUBLICATIONS601CITATIONSSEEPROFILESEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:Hardan

3、santibacterialcoatingsViewprojectHighrateplasmanitridingViewprojectAllcontentfollowingthispagewasuploadedbyYanhuiZhaoon26July2016.Theuserhasrequestedenhancementofthedownloadedfile.第33卷增刊Ⅱ材料热处理学报Vol．33SupplementⅡ2012年11月TRANSACTIONSOFMATERIALSANDHEATTREATMENTNo

4、vember2012电弧等离子体辅助渗氮处理Cr12MoV钢的组织结构及硬度11211赵彦辉，巴宏波，郎文昌，杜昊，于宝海(1．中国科学院金属研究所，辽宁沈阳110016;2．温州职业技术学院材料成型工艺与模具技术重点实验室，浙江温州325035)摘要:采用不同温度对Cr12MoV钢进行电弧等离子体辅助渗氮处理。采用X射线衍射(XRD)分析渗氮层的相组成，采用扫描电子显微镜(SEM)及光学显微镜分别观察渗氮样品表面形貌及横截面形貌，利用显微硬度计测试渗氮层的硬度分布。结果表明:实验钢渗氮层的结构由CrN+γ'-Fe

5、4N+ε-Fe3N的化合物层及由含氮马氏体相α-Fe(N)组成，渗氮层的厚度随处理温度的升高而增加。渗氮处理后能明显提高Cr12MoV钢基体的显微硬度。关键词:电弧等离子体辅助渗氮;模具钢;组织结构;硬度中图分类号:TG142.45文献标志码:A文章编号:1009-6264(2012)增刊Ⅱ-0151-04MicrostructureandhardnessofCr12MoVsteeltreatedbyarcplasma-assistednitridingprocess11211ZHAOYan-hui，BAHong-

6、bo，LANGWen-chang，DUHao，YUBao-hai(1．DivisionofSpecializedMaterialsandDevices，InstituteofMetalResearchChineseAcademyofSciences，Shenyang110016，China;2．KeyLaboratoryofMaterialProcessingandMouldTechnology，WenzhouVocationalandTechnicalCollege，Wenzhou325035，China)Abs

7、tract:Cr12MoVsteelistreatedbylowarcplasma-assistednitridingprocessatdifferenttemperatures．Themicrostructure，phasecompositionandmicrohardnessofthenitridedlayersofCr12MoVsteelwereexaminedbymeansofscanningelectronmicroscope(SEM)，opticalmicroscopeandX-raydiffracti

8、on(XRD)．Themicrohardnesswastestedbymicrohardnesstester．Theresultsshowthatthemirostructureofnitridedlayerobtainedatdifferenttemperaturewascomposedofγ'-FeN，ε-FeN，CrNandasupersaturate