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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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用行波电磁搅拌制备半固态alsi7mg合金浆料
Keywords: 金属材料,半固态,低过热度浇注,电磁搅拌
Abstract:
？用低过热度浇注和弱行波电磁搅拌工艺制备半固态alsi7mg合金浆料,研究了浇注温度和搅拌功率对其初生α-al形貌的影响.结果表明,用该工艺可制备初生$\alpha$--al形貌呈小而圆整的球状晶粒、组织分布均匀、较大尺寸(直径为127mm)的半固态alsi7mg合金浆料.浇注温度合适,短时间弱电磁搅拌(8s左右)就可获得初生α-al形貌大部分为球状,组织分布比较均匀的浆料组织.浇注温度一定,适当提高搅拌功率可明显改善初生α-al的形貌,但是过高的搅拌功率并不能使初生α-al的形貌进一步改善.用该工艺制备的半固态alsi7mg合金浆料,从其边部到心部的径向组织初生α-al形貌经历了一个从枝晶组织向蔷薇状组织再向球状组织转变的过程.
| [1] | 1d.b.spencer,r.mehrebian,m.c.flemings,rheologicalbehaviorofsn-15pbinthecrystallizationrange,metalltrans,3(7),1925(1972)
|
| [2] | 5maoweimin,semi-solidmetalformingtechnology(bei-jing,machineryindustrypress,2004)(毛卫民，半固态金属成形技术(北京，机械工业出版社，2004)p．357)
|
| [3] | 7k.p.young,c.p.kyonka,j.a.courtoris,finegrainedmetalcomposition.uspatent,4415347,1983
|
| [4] | 8v.i.dobatkin,g.i.eskin,ingotsofaluminumalloyswithnondendriticstructureproducedbyultrasonictreatmentfordeformationinthesemi-solidstate,in:procofthe4thintconfonsemi-solidprocessingofalloysandcompos-ites,editedbyd.h.kirkwoodandp.kapranos(universityofsheffield,england,uk,departmentofengineeringma-terials,universityofsheffield,1996)p.193
|
| [5] | 10maoweimin,zhaoaimin,cuichenglin,zhongxueyou,theformationmechanismofnon-dendriticpri-maryα-alphasesinsemi-solidalsi7mgalloy,actamet-all.sinica,35(9),971(1999)(毛卫民，赵爱民，崔成林，钟雪友，电磁搅拌对半固态alsi7mg合金初生α-al的影响规律，金属学报，35(9)，971(1999))
|
| [6] | 11gaosongfu,maoweimin,baiyuelong,liqiang,fill-ingabilityofsemi-solida356alloyinrheo-castingandmicrostructuredistribution,specialcasting&nonferrousalloys,10,598-599(2005)(高松福，毛卫民，白月龙，李强，半固态a356铝合金的流变压铸充填性与组织分布，特种铸造及有色合金，10，598—599(2005))
|
| [7] | 12maoweimin,baiyuelong,tangguoxing,prepara-tionforsemi-solidaluminumalloyslurryunderweakelec-tromagneticstirringcondition,j.mater.sci.technol.,22(4),447(2006)
|
| [8] | 13liuzheng,maoweimin,zhaozhenduo,preparationofsemi-solidslurryofaluminumalloysbyanewtechnology,chinesej.mater.research,20(2),125(2006)(刘政，毛卫民，赵振铎，用新工艺制备半固态铝合金浆料，材料研究学报，20(2)，125(2006))
|
| [9] | 15e.cardoso,h.v.atkinson,h.jones,microstructuralevo-lutionofa356duringnrcprocessing.procofthe8thintconfonsemisolidprocessingofalloysandcompos-ites,editedbya.alexandrou,d.apelianandg.georgiou(limassol,cyprus,universityofcyprus,2004)p.296
|
| [10] | 2m.c.flemings,r.g.riek,k.p.young,rheocasting,mater.sciandeng.,25,103(1976)
|
| [11] | 3m.c.flemings,behaviorofmetalalloysinthesemi-solidstate,metalltrans,22a(5),957-981(1991)
|
| [12] | 4xieshuisheng,huangshenghong,thetechnologyandapplicationofsemi-solidmetalprocessing(beijing,met-allurgicalindustrypress,1999)(谢水生，黄声宏，半固态金属加工技术及其应用(北京，冶金工业出版社，1999)p．130)
|
| [13] | 6s.p.midson,thecommercialstatusofsemi-solidcastingintheusa,in:procofthe4thintconfonsemi-solidprocessingofalloysandcomposites,editedbyd.h.kirkwoodandp.kapranos(universityofsheffield,eng-land,uk,departmentofengineeringmaterials,univer-sityofsheffield,1996)p.251
|
| [14] | 9huhanqi,themetalsolidificationtheory,2ndedition,(beijing,machineryindustrypress,2000)p.109(胡汉起，金属凝固原理，第2版，(北京，机械工业出版社，2000)p．109)
|
| [15] | 14tianzhanfeng,zhangzhifeng,xujun,shilikai.themscpprocesssemisolidslurryproduction.proceed-ingsofthe9thinternationalconferenceonsemi-solidprocessingofalloysandcomposites.busankorea,sep-tember,11-13,362-365(2006)
|
| [16] | 16panye,zhangchunyan,yuanhaoyang,sunguox-long,effectofmetalflowatinitialsolidificationongran-ularprimarycrystalformationinsemi-solidalloy,actametall.sinica,37(10),1035(2001)(潘冶，张春燕，袁浩扬，孙国雄，结晶初期熔体流动对半固态合金粒状初晶形成的作用，金属学报，37(10)，1035(2001))
|
| [17] | 17maoweimin,zhenzisheng,chenhongtao,mi-crostructureofsemi-solidaz91dalloysolidifiedduringelectromagneticstirring,chinesej.mater.research,19(3),303(2005)(毛卫民，甄子胜，陈洪涛，电磁搅拌对半固态az91d镁合金组织的影响，材料研究学报，19(3)，303(2005))
|
| [18] | 18j.a.yurko,r.a.martinez,m.c.flemings,developmentofthesemi-solidrheocasting(ssr)process,in:procofthe7thintconfonsemi-solidprocessingofalloysandcom-posites,editedbyy.tsutsui,m.kiuchiandk.ichikawa(tsukubajapan,nationalinstituteofadvancedindus-trialscienceandtechnology,japansocietyfortechnol-ogyofplasticity,2002)p.659x
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