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1、Ti復(fù)合涂層高溫微動(dòng)磨損特性研究2007年8月第32卷第8期潤(rùn)滑與密封LUBRICATIONENGINEERINGAug.2007Vo1.32No.8等離子體浸沒(méi)離子注入與沉積TiN/Ti復(fù)合涂層高溫微動(dòng)磨損特性研究王允江劉捍衛(wèi)張鵬程邱紹宇朱昱昊(1.西南交通大學(xué)材料先進(jìn)技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室四川成都610031;2.表面物理及化學(xué)國(guó)家級(jí)重點(diǎn)實(shí)驗(yàn)室四川綿陽(yáng)621900;3.中國(guó)核動(dòng)力研究設(shè)計(jì)院核燃料及材料國(guó)家級(jí)重點(diǎn)實(shí)驗(yàn)室四川成都610041)摘要:采用等離子體浸沒(méi)離子注入與沉積技術(shù)(PIII&D),在T225NG鈦合金基材上制備了TiN/Ti復(fù)合涂層.對(duì)沉積涂層
2、的組織和化學(xué)成分作了XPS和AES分析,用掃描電鏡SEM,能譜儀EDS和激光共焦掃描顯微鏡(LCSM)對(duì)該涂層大氣氛圍中室溫(25),200℃和400℃的微動(dòng)磨損特性與基材進(jìn)行了對(duì)比研究.結(jié)果表明:復(fù)合涂層中的組織為TiN和TiO;在部分滑移區(qū)和混合區(qū),PIII&DTiN/Ti復(fù)合涂層摩擦因數(shù)隨溫度升高而降低,在滑移區(qū),涂層摩擦因數(shù)波動(dòng)較大,溫度對(duì)基材摩擦因數(shù)影響不明顯.在部分滑移區(qū)磨損輕微,在混合區(qū)和滑移區(qū),涂層磨損機(jī)制以剝層和氧化磨損為主,局部存在磨粒磨損.關(guān)鍵詞:微動(dòng)磨損;溫度;3"225NG鈦合金;TiN/Ti復(fù)合涂層中圖分類號(hào):TH117.1文獻(xiàn)標(biāo)識(shí)
3、碼:A文章編號(hào):0254—0150(2007)8—077—4FrettingWearBehavior0fTiN/TiCompositesFormedbyPlasmaImmersionIonImplantationandDepositionatElevatedTemperatureWangYunjiangLiuHanweiZhangPengchengQiuShaoyuZhuMinhao(1.KeyLaboratoryofAdvancedTechnologiesofMaterials,MinistryofEducationofChina,SouthwestJiaotong
4、University,ChengduSichuan610031,China;2.NationalKeyLaboratoryforSurfacePhysicsandChemistry,MianyangSichuan621900,China;3.NationalKeyLaboratoryofNuclearFuelandMaterials,NuclearPowerInstituteofChina,ChengduSichuan610041,China)Abstract:TiN/Ticompositeswerepreparedbyplasmaimmersionionimplan
5、tationanddepositiononT225NGTitaniumalloysubstrate.Aftertesting,themorphologiesofwearSCarSwereobservedbySEM,concentrationofoxygenelementwerecomparedwithEDS.Verysmallwearvolumeweredeterminedbymeansoflaserscanningmicroscope(LSM).Thestudyresultsshowthatthestructureofthecompositesisconsisted
6、ofTiNandTiO2.Inthepartialslipregime,thewearisslight,thefrictioncoefficientsdecreasewiththeincreaseoftemperature.Inthemixedregimeandslipregime,thefrictioncoeffi?cientsofcoatingfluctuatewhilethesubstratekeepsunchangewiththetemperatureincreased.Thewearmechanismsarede'lamination,oxidationwe
7、arandabrasivewear.Keywords:frettingwear;temperature;T225NGTitaniumalloy;TiN/Ticomposites微動(dòng)(Fretting)是接觸表面間發(fā)生的振幅極小(微米量級(jí))的相對(duì)運(yùn)動(dòng)….在航空航天,鐵道,電力,核電及人工植入器械等領(lǐng)域中由于微動(dòng)損傷而導(dǎo)致零部件故障甚至事故.因此如何預(yù)防和減輕微動(dòng)損基金項(xiàng)目:教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃(NCET-04?0885);教育部科學(xué)技術(shù)研究重點(diǎn)項(xiàng)目(106137);教育部?jī)?yōu)秀博士論文基金項(xiàng)目(200536);核燃料及材料國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)發(fā)課題(
