真空搅拌铸造制备SiC颗粒增强ADC12铝基复合材料及其力学性能表征

6材料工程2014年1期真空搅拌铸造制备SIC颗粒增强ADC12铝基复合材料及其力学性能表征PREPARATIONANDMECHANICALPROPERTIESOFSICPARTICULATEREINFORCEDADC12ALUMINUMMATRIXCOMPOSITEBYVACUUMSTIRCASTING吴星平，石锦罡。，吴昊，陈名海。，刘宁，李清文1合肥工业大学材料科学与工程学院，合肥230009；2中国科学院苏州纳米技术与纳米仿生研究所，江苏苏州215123；3中国船舶重工集团公司第十二研究所，陕西兴平713102WUXINGPING，SHIJINGANG，WUHAO，CHENMINGHAI，LIUNING，LIQINGWEN1SCHOOLOFMATERIALSSCIENCEANDENGINEERING。HEFEIUNIVERSITYOFTECHNOLOGY，HEFEI230009，CHINA2SUZHOUINSTITUTEOFNANOTECHANDNANOBIONICS，CHINESEACADEMYOFSCIENCES，SUZHOU215123，JIANGSU，CHINA；3NO12RESEARCHINSTITUTE。CHINASHIPBUILDINGINDUSTRYCORPORATION，XINGPING713102，SHAANXI，CHINA摘要以SICCU复合包裹粉体为增强相，采用真空搅拌铸造技术制备SICADC12铝基复合材料，研究制备工艺条件对复合材料力学性能的影响，同时借助X射线衍射XRD和扫描电子显微镜SEM等测试分析手段对其物相结构进行表征。结果表明SICCU复合粉体显著改善了SIC颗粒在熔融铝合金基体中的润湿性和分散性。当搅拌温度为580C，搅拌时间为30MIN，复合粉体添加量为4质量分数时，复合材料获得最佳的力学性能，拉伸强度283MPA，硬度HB133，较基体合金分别提高241和773，较普通SIC增强复合材料提高155和267。关键词SICCU复合包裹粉体；真空搅拌铸造；力学性能DOI103969JISSN10014381201401002中图分类号TB331文献标识码A文章编号10014381201401000606ABSTRACTSICCUCOMPOSITEPOWDERSWEREADOPTEDTOFABRICATESICPARTICULATEREINFORCEDADC12ALUMINUMALLOYMATRIXCOMPOSITEBYVACUUMSTIRCASTINGTECHNIQUE，ANDTHEINFLUENCEOFPREPARATIONPROCESSONTHEMECHANICALPROPERTIESOFCOMPOSITEWASINVESTIGATEDANDOPTIMIZEDTHECOMPOSITESWERECHARACTERIZEDBYXRAYDIFFRACTOMETRYXRDANDSCANNINGELECTRONMICROSCOPYSEMTHERESULTSSHOWTHATDISPERSITYANDWETTINGABILITYOFSICPARTICLESINMOLTENALUMINUMALLOYMATRIXARESIGNIFICANTLYIMPROVEDBYSICCUCOMPOSITEPOWDERSATTHECONDITIONOFT一580，T一30MIN，ANDSICCONTENT一4，THECOMPOSITEATTAINSTHEBESTMECHANICALPROPERTIESITSTENSILESTRENGTHANDHARDNESSREACH283MPAANDHB133，RESPECTIVELY，WHICHAREIMPROVEDBY241AND773，COMPAREDWITHADC12ALLOYMATRIXITALSOSHOWSOBVIOUSINCREASEBY155INTENSILESTRENGTHAND267INHARDNESS，RESPECTIVELY，COMPAREDTOTHECOMPOSITEWITHONLYBARESICADDITIONKEYWORDSSICCUCOMPOSITEPOWDER；VACUUMSTIRCASTING；MECHANICALPROPERTY颗粒增强铝基复合材料具有质量轻、强度硬度高、热膨胀系数低、耐磨性好等优点，被广泛应用于航空航天、交通运输以及电子封装等行业。其制备方法主要有搅拌铸造法、粉末冶金法、喷射沉积法等。其中，搅拌铸造法具有生产效率高、工艺简单、成本低廉等优势，是最适合于大规模工业化生产的一种方法。碳化硅因其具有较高的性价比被广泛应用于制备颗粒增强铝基复合材料。搅拌铸造法制备碳化硅颗粒增强铝基复合材料主要面临两大难题川1碳化硅为陶瓷相，与铝合金基体界面结合较差，易产生诸如晶真空搅拌铸造制备SIC颗粒增强ADC12铝基复合材料及其力学性能表征112相比于普通SIC复合材料，SICCU复合材料拉伸强度提高了155，硬度提高了267，SICCU复合粉体能够有效改善SIC在基体中的分散性和润湿性。3断口分析表明，复合材料的断裂方式为解理断裂和沿晶断裂的混合断裂模式。123E3345F637893参考文献IIOYDDJPARTICLEREINFORCEDALUMINIUMANDMAGNESIUMMATRIXCOMPOSITESJINTERNATIONALMATERIALSREVIEWS，1994，391123ZHANGHW，GENGI，GUANIN，ETA1EFFECTSOFSICPARTICLEPRETREATMENTANDSTIRRINGPARAMETERSONTHEMICROSTRUCTUREANDMECHANICALPROPERTIESOFSIC。A168MGCOMPOSITESFABRICATEDBYSEMISOLIDSTIRRINGTECHNIQUEJMATERIALSSCIENCEANDENGINEERINGA，2010，5281513518BINDUMADHAVANPN，CHIATKCHANDRASEKARANM，ETA1EFFECTOFPARTICLEPOROSITYCLUSTERSONTRIBOLOGICALBEHAVIOROFEASTALUMINUMALLOYA356一SICPMETALMATRIXCOMPOSITESJMATERIALSSCIENCEANDENGINEERINGA，2001，31512217226李晓，李萍，薛克敏，等高压扭转法对SICPA1基复合材料颗粒分布的影响EJ3材料工程。2O12。25054IIX，IIP，XUEKM，ETA1EFFECTOFHIGHPRESSURETORSIONONPARTICLEDISTRIBUTIONOFSICPA1COMPOSITESJJOURNALOFMATERIALSENGINEERING，2012，25054KACZMARJW，PIETRZAKK，WIOSINSKIWTHEPRODUCTIONANDAPPLICATIONOFMETALMATRIXCOMPOSITEMATERIALSIJJOURNALOFMATERIALSPROCESSINGTECHNOLOGY，2000，106135867TJ0NGSC，MAZYMICROSTRUCTURALANDMECHANICALCHARACTERISTICSOFINSITUMETALMATRIXCOMPOSITESIJMATERIALSSCIENCEANDENGINEERINGR，2000，293449113HASHIMJ，I00NEYI，HASHMIMSJPARTICLEDISTRIBUTIONINCASTMETALMATRIXCOMPOSITESPARTLJJOURNALOFMATERIALSPROCESSINGTECHNOLOGY，2002，L232258263AMIRKHANIOUS，NIROUMANDBSYNTHESISANDCHARACTERIZATIONOF356一SICPCOMPOSITESBYSTIRCASTINGANDCOMPOCASTINGMETHODSIJTRANSACTIONSOFNONFERROUSMETALSSOCIETYOFCHINA，2010，20SUPPL3788793GENGI，ZHANGHW，IIHZ，ETA1EFFECTSOFMGCONTENTONMICROSTRUCTUREANDMECHANICALPROPERTIESOFSIC。A卜MGCOMPOSITESFABRICATEDBYSEMISOLIDSTIRRINGTECHNIQUEJTRANSACTIONSOFNONFERROUSMETALSSOCIETYOFCHINA，2010，20185118551O高飞鹏，刘世英，张琼元，等纳米SIC颗粒增强ADC12铝基复合材料的制备及性能J特种铸造及有色合金，2009，2912T1401143GAOFP，LIUSY，ZHANGQY，ETA1PREPARATIONANDPROPERTIESOFNANOSIZEDSICPARTICLESREINFORCEDADC12ALUMINUMMATRIXCOMPOSITESJSPECIALCASTINGNONFERROUSALLOYS，2009，29121140114311ZHANGR，GAOI，GUOJKPREPARATIONANDCHARACTERIZATIONOFCOATEDNANOSCALECUSIC。COMPOSITEPARTICLESJCERAMICSINTERNATIONAL，2004，30340140412HASHIMJ，LOONEYI，HASHMIMSJTHEWETTABILITYOFSICPARTICLESBYMOLTENALUMINUMALLOYJJOURNALOFMATERIALSPROCESSINGTECHNOLOGY，2001，1191332432813QUAAKCJ，KOOIWHPROPERTIESOFSEMISOLIDALUMINUMMATRIXCOMPOSITESJMATERIALSSCIENCEANDENGINEERINGA，1994，188122772821,14PRABUSB，KARUNAM00RTHYI，KATHIRESANS，ETA1INFLUENCEOFSTIRRINGSPEEDANDSTIRRINGTIMEONDISTRIBUTIONOFPARTICLESINCASTMETALMATRIXCOMPOSITEJJOURNALOFMATERIALSPROCESSINGTECHNOLOGY，2006，171226827315石锦罡，姚辉。陈名海，等铜包裹碳化硅颗粒复合粉体的化学原位沉积制备与表征RJ无机材料学报，2012，278795799SHIJG，YA0H，CHENMH，ETA1PREPARATIONANDCHARACTERIZATIONOFCUCOATEDSICCOMPOSITEPOWDERSBYINSITUCHEMICALDEPOSITIONJJOURNALOFINORGANICMATERIALS，2012，27879579916赵玉涛，戴起勋，陈刚金属基复合材料M北京机械工业出版社，200717陈尚平。解念锁，苏建璋，等非连续增强铝合金复合材料的力学性能J材料科学与工程，1997，1547278CHENSP，XIENS，SUJZ，ETA1THEMECHANICALPROPERTIESOFA1ALLOYSMATRIXCOMPOSITESBASEDUPONDISCONTINOUSREINFORCEMENTJMATERIALSSCIENCEANDENGINEERING，1997，154727818金鹏，刘越。李曙，等碳化硅增强铝基复合材料的力学性能和断裂机制EJ材料研究学报，2009，232211214JINP，LIUY，LIS，ETA1EFFECTOFSICPARTICLESIZEONTENSI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