共查询到20条相似文献,搜索用时 625 毫秒
1.
D.G.Morris Institute of Structural Metallurgy University of Neuchtel Neuchtel Switzerland 《中国有色金属学会会刊》1999,(Z1)
1 INTRODUCTIONItisnowacceptedthatbothalloysbasedonFe3AlandonFeAlshowapeakintheirflowstressattesttemperaturesoftheorderof500~600℃[1-6].EarlystudiesontheFeAlalloysfailedtoshowsuchintermediatetemperaturepeaks,whichcannowbeexplainedthroughthelowtemperatu… 相似文献
2.
《中国有色金属学会会刊》1994,(2)
ABSTRACTSFROMTRANSNFsoc(Chineseedition)Vol.3,No.4,Oct.1993A003—CalculationforRandom-FuzzyReliabilityofRockSlopewithPossessing... 相似文献
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Shot peening and solid lubricating on Ti6Al4V fretting fatigue 总被引:3,自引:0,他引:3
1IntroductionTialloyisakindofimportantmaterialforjetengine,andsomeofthemareappliedunderfrettingfatigue(FF).ShotpeeningandsurfacecoatingshavebeensuggestedtoimprovetheendurancelivesofFFsince1970′s[1].Amongallofprocessing,shotpeeningholdsitspriority.… 相似文献
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nterfaceFormationofSeveralHeterojunctionsConcerningⅣandⅡⅥSemiconductors①BanDayan,XueJiangeng,FangRongchuanDepartmentofPhysic... 相似文献
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CathodicProcessofTi(Ⅳ)inMoltenLiF-NaFShiQingrongandDuanShuzhen石青荣,段淑贞(UniversityofScienceandTechnologyBeijing,Beijing100083,C... 相似文献
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1IntroductionMoreandmorecarbonatemeltshavebeenemployedtoserveaselectrolyterecently,especiallyinmoltencarbonatefuelcells(MCFC).MCFCisbelievedtobeoneofthemostpromisingnewenergyconversiondevicethatconvertschemicalenergyinfossilfuelsintoelectricity[1~3].MCFCt… 相似文献
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Z.M.Xu) J.S.Zhen) H.F.Liu) L.M.Zhang) )Departent of Chemistry Huazhong University of Science Technology Wuhan China )Institute of Materials Science Engineering Wuhan University of Technology Wuhan China 《金属学报(英文版)》1999,12(4):678-683
1.IntroductionFunctionallyGradientMaterial(FGM)isakindofnewthermalbarriercoatingwhichappearedintheearly1990s〔1,2〕.TheproductionofFGMischieflycarriedoutbymeansofhightemperature.AfewstudiesonthepreparationofFGMbylowtemperaturearemade〔3,4,5〕.Electroless… 相似文献
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Z. M. Xiu) L. X. Ding) Z. J. Zhao) J. You) Z. Zhang) F. M. He)and X. D. Sun)) School of Materials Metallurgy Northeastern University Shenyang China) Department of Materials School of Mechan 《金属学报(英文版)》1999,12(5):1198-1201
1.IntroductionBoronisaveryeffectiveliquidphasesinteringadditivetoiron〔1-2〕.TheFeBCphasediagramshowsaternaryeutecticreactionoccurringat1097℃〔3〕.AdditionofFeBandFeCmasteralloypowderstoFeMoBCsinteredsteelscanactivatethesinteringprocessbyliquidpha… 相似文献
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Porosity of aluminum alloy in lost foam casting process 总被引:7,自引:0,他引:7
1 INTRODUCTIONThelostfoamcasting (LFC) processiscalledasthe 2 1stcenturytechnology .Itsformingisdifferentfromthatoftheconventionalempty cavitycastingmethod[1,2 ].ForaluminumalloyinLFC process,pouringtemperatureofaluminummeltismuchhigherthanthatoftheempty cavity… 相似文献
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R.O.Ritchie Department of Materials Science Mineral Engineering University of California Berkeley CA U.S.A. 《中国有色金属学会会刊》1999,(Z1)
1 INTRODUCTIONFatigueinvolvesthemicrostructuraldamageandfailureofmaterialsunderalternatingloads.Structuralmaterials,however,arerarelydesignedforfatigueresistance.Metallicalloysaregenerallydesignedforstrength,intermetallicsforductility,andceramicsfor… 相似文献
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FactorsofeffectingcreepruptureofSMTsolderjointsZhuYing;FangHongyuan;andQianYiyu(HarbinInstituteofTechnology)CuiDianheng(Fourt... 相似文献
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0 IntroductionFuzzylogiccontrol(FLC)isaknowledgebasedcontrolstrategythathasshownitspromisingapplicationinindustrialcontrolengineeringinrecentyears.Itcanbeusedwhenasufficientlyaccuratemodelofthephysicalsystemtobecontrolledisunavailableorwhenaprecisemeas… 相似文献
13.
《中国有色金属学会会刊》1999,(Z1)
1 INTRODUCTIONOnewaytoselectcandidatealloysofpossibleinterestforhightemperatureapplicationsistorequireacombinationofhighmeltingtemperatureandlowdensity,asreportedbyFleischer[1].Heshowedthat,ingeneral,L12alloysareprobablynotverygoodcandidates,since… 相似文献
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Li Weigang Department of Computer Science CIC University of Brasilia UnB C. P. CEP: - Brasilia DF Brazil E mail: Weigang@cic.unb.br 《中国有色金属学会会刊》1999,9(1)
1INTRODUCTION“Oncesaw,neverforgoten”isasentencewhichusedtodescribeahumansenseandlearningsequence.Forexample,aboyglancedatalo... 相似文献
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J.X.Zhang) K. Tamarat) B. Dubois) ) Schoolof Material Science & Engineering Hebei University of Technology Tianjin China) ISMCM LISSMA St.Ouen France 《金属学报(英文版)》1999,12(4):645-648
1.IntroductionAccordingtomanypreviousstudies,thestabilityoff.c.candh.c.pstructuresinFeMnorFeMnbasealloysdependssensitivelyoneithertheMncontentorthemagneticpropertiesofthef.c.cparentphase〔14〕.InFeMnalloyscontaining17~28at.%Mn,theγ→εtransformations… 相似文献
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Effects of cathode materials on discharge characteristics of Li-B alloy/FeS2 thermal battery 总被引:2,自引:1,他引:1
Liu Zhijian 《中国有色金属学会会刊》1999,9(3)
1 INTRODUCTIONIngeneral,FeS2istakenascathodematerialtoformmoltensaltbatterywithmostadvancedanodematerialsLiBalloys[1].Evidently,thestateofFeS2hascorrespondingeffectsonthedischargecharacteristicsofLiB/FeS2moltensaltbatteries.Investigationonthispr… 相似文献
17.
J. Zhao X. Ai J.H. Zhang J.X. Deng C.Z. Huang Department of Mechanical Engineering Shandong University of Technology Jinan China 《金属学报(英文版)》1999,12(5):1054-1058
1.IntroductionTheconceptoffunctionallygradientmaterials(FGM)wasintroducedin1984,whichwasrelatedtothedevelopmentofheatshieldingstructurematerialsforfuturespaceplaneprogramme,withthecompositionaldistributionofanFGMchanginggraduallyfromonesurfacetoth… 相似文献
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Q.S. Liu ) L.C. Zhao) G.X. Dong) N.J. Gu) ) Heibei University of Technology Tianjin China ) Tianjin Institute of Technology Tianjin China ) Harbin University of Technology Harbin China 《金属学报(英文版)》1999,12(4):668-672
1.PrefaceForFeMnSialloyfamily,γ→εmatensitictransformationissemithermoplastic,andstructureoftheparentphaseisdisordered.ThemechanismofshapememoryofthiskindofalloyisdifferentfromthatofNiTiandCubasealloy.theshapememoryeffectoftheFeMnSialloyfamilyor… 相似文献
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Y.H.Wen ) N.Li ) Y.G.Xu ) M.J.Tu ) P.Q.Li ) Y.L.Liu ) Y.L.Ma ) ) Department of Materials Shaping Controlling Engineering Sichuan University Chengdu China ) Xi'an Petroleum Pipe Research Ins 《金属学报(英文版)》1999,12(5):739-742
1.IntroductionIthasbeenreportedthatFeMnSiCrNishapememoryalloysexhibitnotonlyagoodshapememoryeffect(SME),butalsoagoodcorrosionresistance〔1,2〕,comparedwithFeMnSialloys.Furthermore,itcanbeusedinmanufacturingpipecouplingsbecauseofitshighphasetransf… 相似文献