微合金化銅基塊狀非晶的制備及力學(xué)性能的研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文微合金化銅基塊狀非晶的制備及力學(xué)性能的研究姓名：張玲申請學(xué)位級別：碩士專業(yè)：材料加工工程指導(dǎo)教師：寇生中20080501微合金化銅基塊狀非晶的制備及力學(xué)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