摘 要: | 1.IntroductionThereis,duringthisdecade,muchinterestinthedevelopmentofac--TiAlalloys.Par'ticularly,ac--TiAlalloysarewidelyacceptedaspotentialstructuralmaterialsofaerospaceandaircraftengine.Intermediateexperimentsofsomeaerospacecomponelltshavebeenmade,andac--TiAlvalveshavealsobeenusedinautomobilesll].Thiscompoundpossessesanattractivecombinationofproperties,includinghighmeltingtemperature,lowdensityshighmodulus,andgoodoxidationandcreepresistance.Longrangeorderingofintermetalliccompoundsresults…
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