简介：微观结构和当演员组Mg-4.0Sm-1.0Ca合金的机械性质在由热挤出组成的thermomechanical处理期间被调查，滚动，并且在473K变老。Mg41Sm5阶段包含Ca和像针的Mg2在Mg矩阵形成的Ca阶段，和平均谷物尺寸和延伸是4.2m并且27%，分别地在热挤出以后，它在韧性暗示了增加。在滚动以后，另外，谷物尺寸进一步被精制，并且张力的力量增加了到293MPa。一新猛抛Mg3Sm在山峰Mg-4.0Sm-1.0Ca合金被发现，这合金显示了最好的机械性质，与83HV的山峰坚硬和313MPa的最终的张力的力量；这些性质被归因于谷物精炼加强，加强的稳固的答案，变硬的工作，并且降水加强。

简介：Surface-treatedMmNi3.55Co0.75Mn0.4Al0.3alloyasnegativeelectrodematerialofnickel-metalhydridebatterywasemployedtoimprovethehigh-ratedischargeability.SurfacetreatmentwasrealizedbydippingandstirringthealloyintoaHClaqueoussolutionwithvariousconcentrationsatroomtemperature.ThemicrostructureofthealloybeforeandaftersurfacetreatmentwasanalyzedbyX-raydiffraction(XRD)andscanningelectronmicroscopy(SEM).Theelectrochemicalpropertiesbeforeandaftersurfacetreatmentwerecompared,andthealloytreatedin0.025mol/LHClsolutionshowedtheoptimalhigh-ratedischargeability.

简介：TheeffectofrapidsolidificationonstructureandelectrochemicalperformanceoftheLaNi4.5Co0.25Al0.25hydrogenstoragealloywasinvestigatedbyX-raypowderdiffractionandasimulatedbatterytest,includingmaximumcapacity,cyclingstability,self-discharge,andhigh-ratedischargeability(HRD).Allthemelt-spunalloysweresingle-phasewiththeCaCu5-typestructure(spacegroupP6/mmm).Incomparisontotheas-castalloy,therapidlyquenchedalloysmanifestedanimprovedhomogeneityofcompositionandexpandedlatticeparameters.Theelectrochemicalmeasurementsshowedthattheactivationproperty,cyclingstabilityandself-dischargeofthealloyelectrodeswerealsoimprovedfortherapidsolidifiedalloys.TheHRDoftheas-castalloywasbetterthanthoseofalltherapidlysolidifiedalloys.Asthequenchingrateincreased,theHRDandexchangecurrentdensityfirstdecreasedandthenincreased.

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