Nonlinear Mechanical Relaxation Associated With Dislocation-Point Defect Interactions （Ⅱ）——Nonlinear Relaxation Peaks at High and Low Temperatures

摘要

＜正＞ 3 Recent Progress in Nonlinear Mechanical RelaxationAssociated With Dislocation-Point Defect Interaction 3.4 Discovering a High-Temperature Anomalous Internal Friction Peak（P3 Peak）andConfirming That the P1 Peak Originates From Short-ranged Diffusion Because the experimentally determined value of the activation energy associated withthe P1 peak is much lower than the value associated with bulk diffusion（long-rangeddiffusion）, it was suggested that the underlying process controlling the P1 peak is the corediffusion（short-ranged diffusion）of the solute atoms in or along the dislocation pipe orkink instead of the long-ranged diffusion around the dislocations.A further consolidation