The influence of a dilute magnesium addition on the growth ant shrinkage of dislocation loops in aluminium
作者： S. Kritzinger , P. S. Dobson , R. E. Smallman
DOI: 10.1080/14786436708229735
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摘要: Abstract The influence of a dilute magnesium addition to pure aluminium on the climb dislocation loops has been studied by isothermal annealing thin foils Al-0·65% Mg. Faulted were observed shrink at temperatures above 130°C, whereas prismatic critical size grew temperature? ≳200°C; in they generally shrink. various mechanisms previously proposed account for excess vacancies have critically examined and shown be inconsistent with experimental observations, an alternative mechanism based growth surface oxide is proposed. Experimental observations consistent are described. variation shrinkage rate temperature both faulted over wide range determined. results, which do not conform emission controlled kinetics, analysed terms diffusion behaviour deduce accurate value intrinsic stacking-faul...
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