DSC在新材料研究中

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1、DSC在新合金材料研究中的重要应用问题如果能够随意控制材料的组织，会是什么样的结果？材料热加工工艺的制定依据是什么？例如铝合金T6处理。磁性合金TheFe–Si–B–Cu–Nbamorphousalloywiththecompositions:Fe73.5Si13.5B9Nb3Cu1afterappropriateannealingexhibitsexcellentmagneticproperties,thesesuperiorpropertiesresultfromcrystallizationofaninitia

2、llyamorphousmaterial,leadingtotheformationofnanocrystals(about10nminsize)oftheFe3SiphaseintheremainingamorphousmatrixThisalloyisnowavailablecommerciallyasFinemet.一个非常了不起的发明。YoshizawaY,OgumaS,YamauchiK(1988)TheeffectofCopperalloyingadditionsonthecrystallizationo

3、fanamorphousFe–Si–BalloyY.R.Zhang，R.V.RamanujanThefirstpeakcorrespondstotheformationoftheFe3SiphaseandthesecondpeakindicatestheappearanceoftheFe3Bcompound.ItshowedthatCualloyingadditionmadeprimarycrystallizationeasiersuggestingthatitenhancesthekineticsofcrystal

4、lization.FortheFe–Si–B–CualloythemicrostructuralMicrostructuralevolutionwassignificantlydifferent:foraheattreatmenttemperatureof420C,insteadofadendriticmorphology,spheroidalcrystalslessthan100nminsizewereobservedasthefirstcrystallizationproductsIntheFe–Si–Ballo

5、ysystems,adendriticmorphologyiscommonlyobservedduetosoluterejectionduringcrystallizationresultinginconstitutionalsupercooling.反差多么强烈！更复杂的合金纳米Al合金焊接钎料你选择什么工艺制造钎料？我们自己的工作C不同冷速下形成的Fe70Nb10B20在20K/min连续加热条件下的DSC曲线