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金属学报(英文版) 1999
RAFTING PREDICTION CRITERION FOR NICKEL-BASE SINGLE CRYSTALS UNDER MULTIAXIAL STRESSES AND CRYSTALLOGRAPHIC ORIENTATION DEPENDENCE OF CREEP BEHAVIORKeywords: rafting prediction criterion,multiaxial stress state,crystallographic orientation dependence,creep behavior,nickel-base single crystal superalloy Abstract: 1.IntroductionIthasbeenacceptedwidelythatthecrystallographicorientationdependenceofcreepbehaviordependsontheanisotropicraftingofac'-particles.Duringcreepdeformationtheinitiallycubical7'-particlescoarsendirectionally,formingrafting.Morphologychangesof...
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