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时间:2020-03-23
《Nb 元素对低碳 Stellite合金激光熔覆层显微组织和磨损性能的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、41ज10௹Vol畅41No畅102016୍10ᄅHEATTREATMENTOFMETALSOctober2016Nb元素对低碳Stellite合金激光熔覆层显微组织和磨损性能的影响1,21,2344任方成,姚建华,刘蓉,陈新超,毛伟(1.浙江工业大学激光加工技术工程研究中心,浙江杭州310014;2.浙江省高端激光制造装备协同创新中心,浙江杭州310014;3.卡尔顿大学机械与航空航天工程系,加拿大渥太华K1S5B6;4.博雷(中国)控制系统有限公司,浙江杭州311231)摘要:Ⴈೡ૭ࣤ、ି௶၎、Xഝཌစഝٳ༅၎ބۚ໑ଉଈ൫ဒࠏ࣮
2、ਔNbჭؓฏStelliteކࣁܻࠗಶڭҪཁັቆᆮ、ჭٳ、ཌྷቆӮࠣӈ໑ބۚ໑ଈྟି႕ཙ。ࢲݔіૼ,เࡆNbჭಶڭҪཌྷቆᆮ༥߄,ۚݣฏਈაNbჭ܋ቔႨఃбჰކࣁ఼߄ཌྷุࠒٳඔᄹࡆਔ࣍1П。ಶڭҪཁັቆᆮᇶေཌྷႮγ-Coၛ఼ࠣ߄ཌྷCo3Mo、NbCቆӮ。ᄝӈ໑ଈ൫ဒᇏ,ڭಶჭbNݣ,ႨቔCbNཌྷᇉ႗߄ฏႿႮ,༯ଈ໑ۚ℃400ᄝ。ᇶູଈሢᅔၛࠏଈҪڭಶbNݣҪбჰಶڭҪۚ໑ରଈྟิۚਔ1П。ಶڭҪۚ໑ଈྙൔᇶေၛသ߄ଈ、ᅔሢଈູᇶ。关键词:ฏStelliteކࣁ;ܻࠗಶڭ;Nbჭ;ଈ中图分类号:TG146
3、.1;TG174.44文献标志码:A文章编号:0254-6051(2016)10-0015-06EfefctofNbonmicrostructureandwearresistanceoflow-carbonStellitealloylasercladdingcoating1,21,2344RenFangcheng,YaoJianhua,LiuRong,ChenXinchao,MaoWei(1.ResearchCenterofLaserProcessingTechnologyandEngineering,ZhejiangUniversityo
4、fTechnology,HangzhouZhejiang310014,China;2.ZhejiangProvincialCollaborativeInnovationCenterofHigh-endLaser,HangzhouZhejiang310014,China;3.DepartmentofMechanicalandAerospaceEngineeringCarletonUniversity,OttawaOntarioK1S5B6,Canada;4.Bray(China)ControlsSystemCo.,Ltd.,HangzhouZ
5、hejiang311231,China)Abstract:EffectofNbadditiononmicrostructure,elementsandphasesdistribution,roomandhightemperaturewearpropertiesoflow-CStellitealloylasercladdingspecimenswasinvestigatedbySEM,EDS,XRDandpin-on-disctribometer.TheresultsshowthatadditionofNbrefinesthemicrostr
6、uctureofthecladdinglayerandalsoapproximatelydoublesthevolumefractionofstrengtheningphasescomparedwithoriginalalloyduetoformationofNbCwithslightlyincreasedCcontent.Themainphasesinthemicrostructureconsistofγ-CoandstrengtheningphasesCo3Mo,NbC.Adhesivewearisthemainwearmechanis
7、msforthealloywhichcontainsNbatroomtemperature.ThepresenceofNbCcarbidephaseenhancestwicethewearresistanceofthecladdinglayerat400℃.Themainwearmechanismsofthecladdinglayerincludeoxidativewearandadhesivewear.Keywords:low-carbonStellitealloys;lasercladding;Nbelement;wearฏStelli
8、teކࣁၹఃਅ৯࿐ྟି,ႪၳॆเࡆऎႵۚ໑໗קྟ༎ჭьӮູਔ࣮ٚمଉଈაڪോྟି,ၘࣜᄝ۽ြࢸܼٗႨ。ᆃᇕᆭ၂。ކࣁၹఃᇶေ၇ौܥಷ఼ุ߄,௴ђऎႵі૫ࡆ۽႗NbჭႮ
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