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A study of the slow reaction in Al-5 wt.% Ag alloy by resistivity measurements

Murty, KN and Vasu, KI (1971) A study of the slow reaction in Al-5 wt.% Ag alloy by resistivity measurements. In: Materials Science and Engineering, 7 (4). pp. 208-214.

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Official URL: http://dx.doi.org/10.1016/0025-5416(71)90147-9

Abstract

The slow reaction in an Al-5 wt.% Ag alloy has been investigated by resistivity measurements. The "slope change" method gave an activation energy of 1.25 eV for silver diffusion during the slow reaction. The existence of an excess concentration of vacancies in equilibrium with the dislocation loops seems to be responsible for the slow reaction. The presence of silver inhibits the nucleation of dislocation loops by holding up the quenched-in vacancies in solution. There is no indication of the presence of a third stage in the low-temperature ageing process of this alloy.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 23 Jun 2010 05:29
Last Modified: 19 Sep 2010 06:09
URI: http://eprints.iisc.ernet.in/id/eprint/28574

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