Configurational equilibrium at twin-grain boundary intersections in F.C.C metals and alloys, and the measurement of relative interfacial torque

摘要: Abstract By considering the misorientation of directions between certain unique crystallographic orientations at twin-grain boundary intersections in thin metal and alloy foils, a configurational theory has been developed which is applicable explaining origin intrinsic interfacial torque. This shown to be with an average confidence 80% analysis twin-boundary-grain intersection systems using electron transmission selected-area diffraction microscopy techniques. Defining torques arise primarily because change grain free energy variation misorientation, Θ, low-torque configurations are described as those where relative ratios interface grains A B, γtb/γAB, twin A, TA, γtb/γT essentially equal. High-torque geometrical related in...