简介：ＩｎｔｒｏｄｕｃｔｉｏｎＩｎＧｕｉｘｉＳｍｅｌｔｅｒ，ｃｏｐｐｅｒａｎｏｄｅｓｌｉｍｅｗａｓｔｒｅａｔｅｄｂｙｍｅａｎｓｏｆｔｅｃｈｎｏｌｏｇｉｃａｌｐｒｏｃｅｓｏｆｖｏｌａｔｉｌｉｚｉｎｇＳｅｉｎａｒｏｔａｒｙｋｉｌｎ，ｐｉｃｋｉｎｇｃｏｐｐｅ...

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简介：Accordingtothespecificationofsuperalloy-stainlesssteelarcbrazingandcharacteristicofthebasemetal,abestfillermetalwhichhasrelativelowermeltingpoint,nicewettability,goodweldforming,andadequateshearstrengthwasresearched.TheexperimentresultsshowthatwettabilityofCuFeMnonthestainlesssteelisverypoor,concomitantwithamassofpurplesootduringtheweldingwhichdeterioratestheworkingcondition.CuSiMnhasthebestwettabilityonboththesuperalloyandstainlesssteel,butthereremainsalotofpitandslagonthesurfaceoftheweldbead.Copper-basedsolderhasthehighestmeltingpointanditswettabilityandclearancefillabilityareweakerthanCuSi3.WettabilityandclearancefillabilityoftheCuSi3arethebestinallthecandidatefillermetals,anditsweldissmoothnessandhashighershearstrength.Foritscomprehensiveability,CuSi3isselectedasthefinalfillermetal.

简介：VBHF(可变空白的持有者力量)优化策略被采用决定最佳的时间变量和空间变量的BHF轨道，瞄准与铝合金表改进汽车面板的formability。策略基于适应模拟被实现模拟周围在单人赛为Numisheet'05甲板盖的每个分割的文件夹计算批评起皱BHF。在最佳的VBHF和经常的BHF下面的印上的部分的厚度比较证明分别地，四节的变化被70%，44%，64%和61%减少它在厚度分发和变化控制显示重要改进。通过种类路径比较的调查揭示formability改进的基本原因。学习与铝合金表证明新VBHF优化策略的适用性到复杂部分。

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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：TooptimizethemagneticpropertiesofnanocompositeNd9Fe85B6magnets,theas-quenchedribbonswithdifferentmicrostructureswerepreparedatsixwheelvelocitiesfrom10to30ms-1throughrapidquenching,followedbyaseriesofannealingtreatmentsat550–800°Cfor5–10min.Itisfoundthatboththelargeinitialgrainsatlowcoolingrateandhighcontentofamorphousphaseathighcoolingratecausea-Fegrainscoarsening,whichleadstoadeclineinthestrengthofexchangecouplinginteractionandthedeteriorationofmagneticproperties.Inordertooptimizethemagneticproperties,theas-quenchedribbonsshouldbechosenwithrelativelysmallinitialgrainsaswellasasmallamountofamorphousphase.FornanocompositeNd9Fe85B6materials,theoptimizedmagneticpropertiesofHcj=446kAm-1,Br=0.86T,(BH)max=80kJm-3areobtainedforribbonspreparedat18ms-1afterannealingat620°Cfor5min.

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