Gamma Titanium Aluminide Alloys

The first book entirely dedicated to the topic emphasizes the relation between basic research and actual processing technologies. As such, it covers complex microstructures down to the nanometer scale, structure/property relationships and potential applications in key industries. From the contents: * Constitution * Thermophysical Constants * Phase Transformations and Microstructures * Deformation Behaviour * Strengthening Mechanisms * Creep * Fracture Behaviour * Fatigue * Oxidation Resistance and Related Issues * Alloy Design * Ingot Production and Component Casting * Powder Metallurgy * Wrought Processing * Joining * Surface Hardening * Applications and Component Assessment

The first book entirely dedicated to the topic emphasizes the relation between basic research and actual processing technologies. As such, it covers complex microstructures down to the nanometer scale, structure/property relationships and potential applications in key industries.From the contents:* Constitution* Thermophysical Constants* Phase Transformations and Microstructures* Deformation Behaviour* Strengthening Mechanisms* Creep* Fracture Behaviour* Fatigue* Oxidation Resistance and Related Issues* Alloy Design* Ingot Production and Component Casting* Powder Metallurgy* Wrought Processing* Joining* Surface Hardening* Applications and Component Assessment

PrefaceINTRODUCTIONCONSTITUTIONThe Binary Ti-Al Phase DiagramTernary and Multicomponent Alloy SystemsTHERMOPHYSICAL CONSTANTSElastic and Thermal PropertiesPoint DefectsDiffusionPHASE TRANSFORMATIONS AND MICROSTRUCTURESMicrostructure Formation on SolidificationSolid State TransformationsDEFORMATION BEHAVIOR OF SINGLE-PHASE ALLOYSSingle-Phase Gamma(TiAl) AlloysDeformation Behavior of Single-Phase Alpha2(Ti3Al) AlloysBeta/B2 Phase AlloysDEFORMATION BEHAVIOR OF TWO-PHASE ALPHA(Ti3Al) + GAMMA(TiAl) ALLOYSLamellar MicrostructuresDeformation Mechanisms, Contrasting Single-Phase and Two-Phase AlloysGeneration of Dislocations and Mechanical TwinsGlide Resistance and Dislocation MobilityThermal and Athermal StressesSTRENGTHENING MECHANISMSGrain RefinementWork HardeningSolution HardeningPrecipitation HardeningOptimized Nb-Bearing AlloysDEFORMATION BEHAVIOR OF ALLOYS WITH A MODULATED MICROSTRUCTUREModulated MicrostructuresMisfitting InterfacesMechanical PropertiesCREEPDesign Margins and Failure MechanismsGeneral Creep BehaviorThe Steady-State or Minimum Creep RateEffect of MicrostructurePrimary CreepCreep-Induced Degradation of Lamellar StructuresPrecipitation Effects Associated with the Alpha2 -> Gamma Phase TransformationsTertiary CreepOptimized Alloys, Effect of Alloy Composition and ProcessingCreep Properties of Alloys with a Modulated MicrostructureFRACTURE BEHAVIORLength Scales in the Fracture of TiAl AlloysCleavage FractureCrack-Tip PlasticityFracture Toughness, Strength, and DuctilityFracture Behavior of Modulated AlloysRequirements for Ductility and ToughnessAssessment of Property VariabilityFATIGUEDefinitionsThe Stress-Life (S-N) BehaviorHCFEffects of Temperature and Environment on the Cyclic Crack-Growth ResistanceLCFThermomechanical Fatigue and Creep RelaxationOXIDATION BEHAVIOR AND RELATED ISSUESKinetics and ThermodynamicsGeneral Aspects Concerning OxidationSummaryALLOY DESIGNEffect of Aluminum ContentImportant Alloying Elements - General RemarksSpecific Alloy SystemsSummaryINGOT PRODUCTION AND COMPONENT CASTINGIngot ProductionCastingSummaryPOWDER METALLURGYPrealloyed Powder TechnologyElemental-Powder TechnologyMechanical AlloyingWROUGHT PROCESSINGFlow Behavior under Hot-Working ConditionsConversions of MicrostructureWorkabiliy and Primary ProcessingTexture EvolutionSecondary ProcessingJOININGDiffusion BondingBrazing and Other Joining TechnologiesSURFACE HARDENINGShot Peening and Roller BurnishingResidual Stresses, Microhardness, and Surface RoughnessSurface Deformation Due to Shot PeeningPhase Transformation, Recrystallization, and AmorphizationEffect of Shot Peening on Fatigue StrengthThermal Stability of the Surface HardeningAPPLICATIONS, COMPONENT ASSESSMENT, AND OUTLOOKAerospaceAutomotiveOutlook