氮離子注入兩種新型鈦合金的表面改性研究.pdf

1、四川大學(xué)碩士學(xué)位論文氮離子注入兩種新型鈦合金的表面改性研究姓名：鄧炯申請學(xué)位級別：碩士專業(yè)：凝聚態(tài)物理指導(dǎo)教師：封向東20050510ptl川大學(xué)頌f研究生學(xué)位論文AstudyofNionsimplantationonsurfacemodificationoftwotypesofnewtitaniumalloysMajor：CondensedMatterPhysicsPostgraduateI)engJiongTutorFengXian

2、g—DongTitaniumandtitaniumalloysarewidelyuesedinaviation，spacetechnologyandbioengineeringbecauseoftheirexcellentproperties，ie，highyieldstrength，lowdensitygoodcorrosionresistanceandbiocompatibilityHowevermoreextensiveutili

3、zationhasbeenrestrictedbytheirpoorsurfaceproperties，especiallypoorfrictionalcharacteristicsTheresearchofsurfacesmodifyingoftitaniumalloysisbecomingahotsubjectrecentlyAsanimportanttechniqueofTialloysurfacehardnessmodifica

4、tion，nitridingofmaterialshasbeenusedwidelyInthispapertheproblemsrelevanttothetechniqueofnitridinghasbeensummarizedAndbasedonthosevies，theinfluenceofNionsimplantationonthestructureandcomponentofthetitaniumalloyTi一4A12Vand

5、Ti2A125ZrwasstudiedTi一4AI一2VandTi一2AI一25ZralloysampleswereimplantedwiⅡl75keVNionsatatemperatureof200℃TheNionsimplantationinjectiondosagesale3x1017cm。2and8x1017cm～respectivelyTheprojectedrangecalculatedwithTRIM96wasabout1

6、222ATheresultswereanalyzedusingXraydiffractionCxRD、andX—rayphotoelectronspectrometer(XPS)TheXraydiffractionpatternsshowedthatnewphasesTiNandTi02wereformedofafterNionsimplantationXPSsurveysbetweenbindingenergies0tol000eVs

7、howedthatthereexistedTi，C，NandOHigh—resolutionXPScollectionsoftheTi2PandNI5bindingenergyshowedthatTiNandTi02wereformedafterNionsimplantationThemicrohardnessmeasurementshowedthathardnessofTi一4AI一2VandTi一2A125Zralloyaleend