简介：有起始的equiaxed微观结构的BT25y合金的高温度的塑料变丑行为被热压缩测试调查。处理地图被建立评估力量驱散效率()并且识别流动不稳定性区域。当紧张活动范围稳定状态时，处理窗户的最佳在盖住大多数学习变丑温度和1的紧张率的区域被散布吗？

简介：Thehotdeformationbehaviourof7075aluminiumalloyreinforcedwith10%ofSiCparticleswasstudiedbyemployingboth'processingmaps'andmicrostructuralobservations.Thecompositewascharacterizedbyemployingopticalmicroscopetoevaluatethemicrostructuraltransformationsandinstabilityphenomena.Thematerialinvestigatedwasdeformedbycompressioninthetemperatureandstrainraterangesof300-500℃and0.001-1.0s-1,respectively.Thedeformationefficiencywascalculatedbystrainratesensitivity(m)valuesobtainedbyhotcompressiontests.Thepowerdissipationefficiencyandinstabilityparameterswereevaluatedandprocessingmapswereconstructedforstrainof0.5.Theoptimumdomainsandinstabilityzonewereobtainedforthecomposites.Theoptimumprocessingconditionsareobtainedinthestrainraterangeof0.1-0.9s-1andtemperaturerangeof390-440℃withtheefficiencyof30%.

简介：ThehotdeformationbehaviorofextrudedAZ80magnesiumalloywasinvestigatedusingcompressiontestsinthetemperaturerangeof250-400℃andstrainraterangeof0.001-1.000s^-1.The3Dpowerdissipationmapwasdevelopedtoevaluatethehotdeformationmechanismsanddeterminetheoptimalprocessingparameters.Twodomainsofdynamicrecrystallizationwereidentifiedfromthe3Dpowerdissipationmap,