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时间:2019-02-25
《氩气对渗氮处理304不锈钢结构及硬度的影响》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/287350610Effectofargononmicrostructureandmicrohardnessof304stainlesssteeltreatedbynitridingprocessArticleinCailiaoRechuliXuebao/TransactionsofMaterialsandHeatTreatment·January2013CITATIONSREADS0705au
2、thors,including:YanhuiZhaoChineseAcademyofSciences28PUBLICATIONS239CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:HardansantibacterialcoatingsViewprojectHighrateplasmanitridingViewprojectAllcontentfollowingthispagewasuploadedbyYanhuiZhaoon26July2016.Theuser
3、hasrequestedenhancementofthedownloadedfile.第34卷增刊Ⅱ材料热处理学报Vol.34SupplementⅡ2013年11月TRANSACTIONSOFMATERIALSANDHEATTREATMENTNovember2013氩气对渗氮处理304不锈钢结构及硬度的影响12331赵彦辉,贾莹,冯丹,李凤岐,于宝海(1.中国科学院金属研究所,辽宁沈阳110016;2.沈阳鼓风机集团股份有限公司,辽宁沈阳110869;3.沈阳理工大学理学院,辽宁沈阳110168)摘要:采用电弧等离子体辅助渗氮处理了304不锈钢,考察了温度在480℃、处理1h时氩气含量(0~
4、60%)对处理后渗层组织结构及硬度的影响。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X射线光电子谱(XPS)及显微硬度计测试渗氮层的氮含量及横截面硬度分布。结果表明:氮化处理后在不同氩气含量时得到的渗氮层厚度在45~55μm范围内,表层氮含量随着氩气含量增加略有降低,从XRD图谱中发现均有铁氮化物及氮化铬相析出,这些氮化物的析出促进了渗层显微硬度的提高,表层硬度最高达到了1300HV0.05。关键词:电弧等离子体辅助渗氮;奥氏体不锈钢;组织结构;硬度中图分类号:TG142.71文献标志码:A文章编号:1009
5、-6264(2013)增刊Ⅱ-0209-04Effectofargononmicrostructureandmicrohardnessof304stainlesssteeltreatedbynitridingprocess12331ZHAOYan-hui,JIAYing,FENGDan,LIFeng-qi,YUBao-hai(1.DivisionofSpecializedMaterialsandDevices,InstituteofMetalResearchChineseAcademyofSciences,Shenyang110016,China;2.ShenyangBlowerWorksG
6、roupCoLtd,Shenyang110869,China;3.FacultyofScience,ShenyangLigongUniversity,Shenyang110168,China)Abstract:AISI304stainlesssteelwasmodifiedbylow-pressurearcplasma-assistednitridingprocessat480℃for1hwithdifferentargongascomposition(pureN2orN2+Armixture).Thestructure,surfaceandcross-sectionmicrographs,
7、compositiondepthprofileandmicrohardnessprofilesofthesteelwereanalyzedusingXRD,SEM,opticalmicroscope,X-rayphotoelectronspectroscopy(XPS)andmicrohardnesstesting.Theresultsshowthatathicknitridinglayerofabout45
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