资源描述：
《Mechanical properties of bulk metallic glasses.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ProgressinMaterialsScience55(2010)759–839ContentslistsavailableatScienceDirectProgressinMaterialsSciencejournalhomepage:www.elsevier.com/locate/pmatsciMechanicalpropertiesofbulkmetallicglasses1*MorganaMartinTrexler,NareshN.ThadhaniGeorgiaInstituteofTechnology,SchoolofMaterialsScienceandE
2、ngineering,771FerstDr.NW,Atlanta,GA30332,USAarticleinfoabstractArticlehistory:Themechanicalpropertiesofbulkmetallicglasses,includingtheirReceived3June2009superiorstrengthandhardness,andexcellentcorrosionandwearReceivedinrevisedform3February2010resistance,combinedwiththeirgeneralinability
3、toundergohomo-Accepted20March2010geneousplasticdeformationhavebeenasubjectoffascinationforscientistsandengineers.Thescientificintereststemsfromtheunconventionaldeformationandfailureinitiationmechanismsinthisclassofmaterialsinwhichthetypicalcarriersofplasticflow(dislocations)areabsent.Metal
4、licglassesundergohighlylocalized,heterogeneousdeformationbyformationofshearbands,apartic-ularmodeofdeformationofinterestforcertainapplications,butwhichalsocausesthemtofailcatastrophicallyduetouninhibitedshearbandpropagation.Varyingdegreesofbrittleandplasticfail-urecreatingintricatefractu
5、repatternsareobservedinmetallicglasses,quitedifferentfromthoseobservedincrystallinesolids.Thetension–compressionanisotropy,strain-ratesensitivity,ther-malstability,stress-inducedcrystallizationandpolyamorphismtransformations,aresomeoftheattributesthathavesparkedengi-neeringstudiesonbulkm
6、etallicglasses.Understandingoftheglass-formingabilityandthedeformationandfailuremechanismsofbulkmetallicglasses,hasgiveninsightintoalloycompositionsandintrinsically-formingorextrinsically-addedreinforcementphasesforcreatingcompositestructures,toattainthecombinationofhighstrength,tensiled
7、uctility,andfracturetoughnessneededforuseinadvancedstructuralapplications.Therelativeeaseoffab-ricatingmetallicglassesintobulkforms,combinedwiththeiruniquemechanicalproperties,hasmadethesematerialsattractiveoptionsforpossibleapplicationsinaerospace,naval,sportsequip-ment,
