简介：ＬａｓｅｒＴｒｅａｔｍｅｎｔｏｆＯｘｉｄｅＤｉｓｐｅｒｓｉｏｎＳｔｒｅｎｇｔｈｅｎｅｄＡｌｌｏｙｓＳｈａＷｅｉ（沙维）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｉｅｒｉａｌｓＳｃｉｃｎｃｅａｎｄＭｅｔａｌｌｕｒｇｙ，ＵｎｉｖｅｒｓｉｔｙｏｆＣａｍｂｒｉｄｇｅ，Ｕ...

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简介：ＳｉｍｕｌａｔｉｎｇＴｅｓｔｓｆｏｒｔｈｅＨｅａｔ－ｔｒｅａｔｍｅｎｔｏｆＡｎｃｉｅｎｔＢｒｏｎｚｅＭｉｒｒｏｒｓＨｅＴａｎｇｋｕｎ何堂坤（ＩｎｓｔｉｔｕｉｅｏｌＨｉｓｌｏｒｉ．ｏｆＮａｔｕｒａｌＳｃｉｅｎｃｅ．ＡｃａｄｅｍｉａＳｉｎｉｃａＢｅｉｊｉ...

简介：一系列TbDyFe电影被DC磁控管劈啪作响准备。阶段结构和样品电影的磁性上的底层温度和退火的温度的效果被调查。退火的处理在微观结构和样品的磁性上有重要影响。XRD获得的结果显示在温度扔的电影比525敨?祥獥Δ降低

简介：重金属包含pickling污泥(PS)是纯洁链钢的工业的副产品之一，它由于包含的铬和镍被认为危险。处理的PS的传统的方法是垃圾堆和水泥团结。这研究针对由团结/稳定处理PS并且作为glassceramics的一个成核代理人再使用它。结晶化行为和在CaOMgOSiO2艾尔2O3系统被把PS看作成核代理人学习。试验性的结果证实那介绍14?glassceramics的成核代理人能减少的wt%PS在110.8的结晶化温度?渠扯摯?猤映潯吗？

简介：Thethermaldiffusioncoefficient,thermalconductivity,andthermalexpansioncoefficientofCuCralloypreparedbyinfiltrationweremeasuredbythermalconstanttesteranddilatometerbeforeandafterhighpressureheattreatment,atthesametime,theeffectofhighpressuretreatmentonthethermalphysicalpropertiesofCuCralloywasdiscussedbytheanalysisofitsmicrostructure.TheexperimentalresultsshowthathighpressureheattreatmentcanincreasethethermaldiffusioncoefficientandthermalconductivityofCuCralloy,butitchangesslightlyinthepressurerangeof1–6GPa.Asforthermalexpansioncoefficient,whenthetemperatureishigherthan130°C,itisobviouslyhigherthanthatofthealloywithouthighpressuretreatmentafter1GPapressuretreatment,andthehigherthetemperatureis,thelargertheirdifferencesare.

简介：ThecorrosionbehaviorofZL104alloyatdifferentstates(as-castandheattreatment)insaltspraycorrosion(SSC)wasstudied.Theresultsshowthatthesampletreatedafterrefinementandmodifciationhastheleastcorrosiveresistancecomparedwiththesamplebearingas-caststucureatthebeginningofthecorrosion.Asthecorrosionprocesscontinued.however,thetrendreverseditself.After44hcontinuouscorrosion,thecorrosiveratesofallsamplestendtobestable.Afterexperiments,thesamplebearingas-caststructurehadthemostcorrosiveproductsonthesurfacewhereasthesamplebeingrefinedandmodifiedhadtheleastproducts.TheFouriertransformationinfraredspectroscopy(FTIR)analysesofthecorrosionproductsshowthattheseproductsarecomposedofhydroxyl-containingsubstances.

简介：DeepcryogenictreatmenttechnologyofelectrodesisputforwardtoimproveelectrodelifeofresistancespotweldingofaluminumalloyLF2.Deepcryogenictreatmentmakeselectrodelifeforspotweldingaluminumalloyimprove.Thespecificresistivityofthedeepcryogenictreatmentelectrodesistestedandexperimentalresultsshowthatspecificresistivityisdecreasedsharply.ThetemperaturefieldandtheinfluenceofdeepcryogenictreatmentontheelectrodetiptemperatureduringspotweldingaluminiumalloyisstudiedbynumericalsimulationmethodwiththesoftwareANSYS.Theaxisymmetricfiniteelementmodelofmechanical,thermalandelectricalcoupledanalysisofspotweldingprocessisdeveloped.Thenumericalsimulationresultsshowthattheinfluenceofdeepcryogenictreatmentonelectrodetiptemperatureisverylarge.

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简介：ThefatiguepropertyofAZ31magnesiumalloyanditsTIGweldedjointswereinvestigated.Theultrasonicpeeningtreatment(UPT)wasusedtoimprovethefatiguepropertyoftheTIGweldedjoints,whichwastreatedattheweldtoebytheUPTprocess.ThetestresultsshowthatthefatiguestrengthofthebasemetalofAZ31magnesiumalloysis57.8MPa,andthoseofthefilletjointandthetransversecrossjointarerespectively20.0MPaand17.2MPaat2×106cycles.ThefatiguestrengthsoftwokindsofweldedjointstreatedbytheUPTarerespectively30.3MPaand24.7MPa,whichhavebeenimprovedby51.5%and43.6%,respectively.Thefatiguelifeofthefilletjointspecimensisprolongedbyabout2.74timesandthefatiguelifeofthetransversecrossjointspecimensisprolongedbyabout1.05timeswhenthestressrangeisat40.0MPa.

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简介：Theeffectsoflow-CoAB5typehydrogenstoragealloyspreparedbyquenchingandannealingontheperformancesofMH-Nibatterieswereinvestigated,andthecharacteristicsofthelow-CoAB5typehydrogenstoragealloyswerecomparedwiththoseofthehigh-CoAB5typehydrogenstoragealloyaswell.Theresultsshowedthatthefasterthecoolingofthelow-Cohydrogenstoragealloyis,thebetterhomogeneityofthechemicalcompositionforthealloyandthelongercyclelifeofthebatteryare,buttheelectrochemicaldischargecapacityandhigh-ratedischargeabilityarereduced.Thehigh-ratedischargeabilityandchargeretentionofMH-Nibatteriesfortheconventionalas-castannealedlow-Cohydrogenstoragealloyweresuperiortothosefortherapidlyquenchedlow-Cohydrogenstoragealloyandthehigh-Cohydrogenstoragealloy,butalittleinferiorinthecyclelife.

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简介：β-phase上的超声的处理的效果(Mg17Mg-9.0wt.%Al合金的艾尔12)形态学被学习。结果证明与在Mg-9.0wt.%Al团结期间采用的高紧张的超声的颤动，在营舍的全部生气的节的β-phase显著地被精制并且也变化了从对不连续的形态学连续。球形的β-phase在与高紧张的超声的颤动对待的营舍的团结期间被形成。

简介：Inthisarticle,anovelheattreatmentmethod,deformationheat(DH)treatment(extrusion+aging),wasemployedonahypereutecticaluminumsiliconalloy(LM28-0.3wt.%Nd),anditseffectonmicrostructureandmechanicalpropertiesofthisalloywasinvestigated.ItcanbeconcludedthattheeutecticmicrostructuredisappearsaftertheDHtreatment,inthemeantimethemorphologyofα(Al)solidsolutionwastransformedfromfir-treeandcellulartoequiaxed,Siwasrefinedwithgrainsizesofabout1-10μmanddistributeddispersedly,evensomeofthembecameglobularshape,whichcanreducestressaccumulationeffectively.MechanicalpropertiestestindicatedthattheDHtreatmentcouldsignificantlyimprovetheroom-temperaturestrengthandhavelittleeffectonthehigh-temperaturestrengthofLM28-0.3wt.%Ndalloy.Thefracturemechanismisductilefracturebyfracturemorphologyanalysis.

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简介：Ti-23Al-17Nb的机械性质(鼹鼠部分，%)在房间温度的激光横梁焊接合金关节比得上基础材料的。然而，同样焊接的关节的力量和韧性在高温度循环以后严重败坏。微观结构和关节的机械性质上的welded以后热处理的效果被调查。热处理在980oscopy被拿，扫描电子显微镜学和X光检查衍射计。结果显示出Yb增加的0.17%的那增加(集体部分)密度“2519A合金板和还原剂t的粒子吗？