1、蘭州理工大學碩士學位論文微合金化銅基塊狀非晶的制備及力學性能的研究姓名：張玲申請學位級別：碩士專業(yè)：材料加工工程指導教師：寇生中20080501微合金化銅基塊狀非晶的制備及力學性能的研究AbstractIIlthispap％as耐錙ofCu50xZr42燦8Mx(M=GdNd，A曲bulkamoI】Dhousa110ySwere弦pmdbymagneticleⅥtationmeltm爭一coppermodlesuctionmethodA

2、ndt11e西aussfo棚血19abili壩mermals乜bilitya11dmechaIlicaJpropeniesofbulkamorphollsalloyswereeX卸1iIladbyⅪRD，TEM，DSC，meChaIlicalpropertytest％SEMande1蝴弘0beaIlalyzerrespe硎velyThemainmsultsareasfollows：Firstly，也e哲assfomingabil毋and

3、merIllalstabil時ofcu50xZr42舢8Gdx釁O，2，4)Cu50xzr42舢8Ndx(X_O，1，3，5)aIldCu50xZr42A18A＆(x20，2，3，4)bulkamorphousa110yrodwerestlldiedTheresultsshowedmat，i11meCu50xZ“2A18Rc】【(Re=Gd，A曲BMGalloys，△疋waSinbetween59and71，2kwasintherang

4、eof060～063，whichindicatedt11att11e百assf0加血gabilityalldtllennalstabilityofsampleswereinproVed彳疋waSiIlbctween69and92a11d％wasiIltller鋤geofO60～062aLsaddingGdwitll2at％～4at％ThemefmalstabilityofC1146Z“2A18Re4waSmar蛆yinproVedSec

5、ondly，mevickershardnessofCu50xzr42A18Mx(M=Gd，Nd，A曲謝t113mmilldi鋤eterwaSeX鋤inedbybrindlaIldvickersopticalhardnesstest既AndmeadditionofrareeartheleIIl即tsGd甜ldNddecreaLsedhardnessofbulk鋤。叩housa110yW11ileaddingAg，VickerShardne

6、ssinrprovedasAgincreasedThe譏ckershar血essofCu50Zr42A18(x=O)was406，alldt11atofCu46Z“2A18A94(x=4)wasupto527耽耐l弘t觚silepropenyofaScaStdmnbbellshapedCu50Zr42A18bu墩鋤。印housa110yw嬲tested，齜1dcomparedwitllteIlsilepropenyaRerisothen

7、nal秈ealillgThe丘acture如echamsminthetwoconditionwasdiscussedTheresultsshowed也at，a】j[erheat骶a：曬1e11t，tensilestrellgmandplasticityoft11es鋤plewereimproVed，丘a孤玳s仃eil百haIldma】【妣s仃ai芏lValuewere755MPaa11dO80％，respectiVelyTensilep

8、ropert)rofCu50Zr42A18amoIpho瑚miIlribbonswllichwerepr印aredbysin酉eronstripcastwasalsostlldiedAndonlyelaus石cdef0皿ationoccl盯ediIltellsileprocess，andmetensiles仃髓gmwaS5497MPaFillally，C0mpressiVepropenya11d仔actI】remo巾h0109)，ofC

9、u50xZr42A18Mx(M=Gd，Nd，A曲鋤。印housbarwereeX鋤inedT1leresultsshowedmat，compressiVes臼engmofClu50xZr42砧8Mx(M=Gd，Nd)w2LsdecreaSed嬲addingGd，NdTheadditionofAgi11creasedcompressiVes仃engmofbul玉【amo印housaLlloyandallof也e矗acturefomlswe

10、retypicalbrittl％ess丘acture，艦cturesurflaceshowedVein1ikepattemThemaxim呦comⅣessives臼e119maIlds仃aillValueofCu46Zr42A18A朗wereupto2038MPaand425％，respectivelynebelldingprop硎esofCm7Zr42A18A勖andCu50xZr42A18werestudied111ebending