On the recovery and low-temperature deformation of Al-6%Mg alloy
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After deformed at -196°C, the structure of Al-Mg alloys is recovered as the temperature gets back. This recovery phenomenon is most sensible when the temperature becomes around room temperature. In this connection, a further experiment was made by use of Al-6%Mg alloy. The material was isothermally annealed at 30°C-60°C and its electrical resistance was measured. It was found out from the annealing curve that there was activation energy of 1.690 eV.Through this experiment, it was considered that, at first, trapped vacancies, which have been fixed by soluble atoms, are made free, then, as rearrangment locally takes place due to the diffusion of Mg soluble atoms in the stress field of dislocation.Single crystal of Al-6%Mg, having indentical orientation, was deformed by different heattreatments at the temperature of -196°C and 18°C.This deformation was studied from the view-points of stress-strain characteristics, optics and electron microscope.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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