Effects of Plasma Nitriding on Microstructure and Tribological Properties of CoCrMo Alloy Implant Materials-中国期刊网

摘要 MedicalforgedCoCrMoalloywastreatedbyplasmanitridingprocess.Themicrostructureswerecharacterizedby3Dprofiler,SEMandXRD.Thetribologicalpropertieswereinvestigatedunderlubricationof25%bovineserumsolution.Resultsshowthatplasmanitridingisapromisingprocesstoproducethick,hard,andmorewearresistantlayersonthesurfaceofCoCrMoalloy.AllnitridedsamplesshowedanimportantincreaseinthesurfacehardnessduetotheformationofharderCrNandCr2Nphaseswithcompactnano-crystallinestructures.ThetypicalhardnessvaluesofHV0.05increasedalmosttwotimesthanuntreatedone.Underbovineserumlubrication,atlownitridingtemperaturetheCoefficientofFriction（COF）ofnitridedsamplewaslowerthanthatofuntreatedsample,butathighnitridingtemperaturetheCOFwasalmostthesameastheuntreatedone.Comparedwiththeuntreatedsample,thenitridedsamplesshowedlowerwearratesandhigherwearresistanceunderdifferentnitridingtemperatures.TheadhesivewearisthemainmechanismforuntreatedCoCrMoalloyandthewearmechanismsofnitridedonesarethefatiguewearandslightadhesivewear.ItisconcludedthattheimprovementofwearresistanceisascribedtothehardnitrideformationofCrNandCr2Nphasesatthenitridedsurfaces.

1Qingliang Wang;Chuanhui Huan;Lei Zhang. Microstructure and Tribological Properties of Plasma Nitriding Cast CoCrMo Alloy.材料科学与工程,2012-01.
2许越;卢立国;白婧. Effects of Rare Earths on Properties and Microstructure of Automotive Friction Materials.有色金属冶金,2007-11.
3雷玉成;赵凯;朱强;黄巍. Influence of filler materials on microstructure and mechanical properties of MGH956 alloy in TIG welding.焊接,2012-04.
4王誉静;魏波;郭阳阳;刘正;潘厚宏. Microstructure and mechanical properties of the joint of 6061 aluminum alloy by plasma-MIG hybrid welding.焊接,2017-02.
5Hojat Ahmadi;D.Y. Li;Meisam Nouri. Effects of Yttria Addition on Microstructure, Mechanical Properties, Wear Resistance and Corrosive Wear Resistance of TiNi Alloy.材料科学与工程,2009-05.
6Jelliti Sami;Delphine Retraint. Electrochemical and Tribological Behaviour of Ti6Al4V Subjected to the Duplex SMAT/Plasma Nitriding.物理,2018-03.
7杨明波;程亮;潘复生. Effects of calcium addition on as-cast microstructure and mechanical properties of Mg-5Zn-5Sn alloy.金属材料,2010-05.
8CHENG Jigui;DENG Liping;ZHANG Benrui;SHI Ping;MENG Guangyao. Properties and microstructure of NiO/SDC materials for SOFC anode applications.金属材料,2007-02.
9CHEN Kai;LIU Xiaoping;LIU Xiaozhen;MENG Tianxu;GUO Qi;WANG Zhenxia;LIN Naimin. Microstructure and Wear Behavior of Ti-6Al-4V Treated by Plasma Zr-alloying and Plasma Nitriding.材料科学与工程,2016-05.
10Jin-Ming Zhu;Jie-Li Meng;Jian-Lie Liang. Microstructure and mechanical properties of multi-principal component AlCoCrFeNiCux alloy.金属材料,2016-05.

Effects of Plasma Nitriding on Microstructure and Tribological Properties of CoCrMo Alloy Implant Materials

来源期刊

相关推荐

同分类资源更多

相关关键词

Effects of Plasma Nitriding on Microstructure and Tribological Properties of CoCrMo Alloy Implant Materials

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多