CALCULATION OF BRAVAIS LATTICE AND LATTICE DISTORTION OF γ-TiA1 BASED ALLOY

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