QUENCHED-IN VACANCIES IN DILUTE ALUMINIUM-MAGNESIUM ALLOYS

Journal Article · Fri Mar 01 04:00:00 EST 1963 · J. Phys. Soc. Japan

OSTI ID:4636110

Takamura, J; Okazaki, K; Greenfield, I G

Electron-microscope observations of the development of prismatic dislocation loops due to quenched-in vacancies in dilute aluminum-magnesium alloys were made in connection with measurements of the dimensional changes of quenched specimens. From this irformation direct evidence for the collapse of vacancy clusters into prismatic dislocation loops was obtained. The retardation of the development of prismatic loops during room temperature annealing in aluminum-- magnesium alloys in comparison with pure aluminum was interpreted in terms of binding between a vacancy and a magnesium atom; the binding energy was estimated to be 0.20 ev from the quenched-in resistivity measurement of alloys having 0.1 and 0.5 at.% magnesium. It was also concluded that the contribution of vacancies associated with magnesium atoms to electrical resistivity is smaller than that of free vacancies in pure aluminum. (auth)

• Research Organization: Kyoto Univ.
• NSA Number: NSA-17-037592
• OSTI ID: 4636110
• Journal Information: J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 18: Suppl. III
• Country of Publication: Country unknown/Code not available
• Language: English

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