Dynamic strain ageing and the mechanical response of alloys
Abstract
The mechanisms of static and dynamic strain ageing which occur in dilute alloys at moderate temperatures are briefly surveyed. Emphasis is put on the reduction of ductility which follows from the reduction in strain rate sensitivity caused by dynamic strain ageing. Strain and strain rate effects associated with static and dynamic strain ageing and with the Portevin-Le Châtelier effect are discussed with reference to a variety of alloys, in particular to advanced aluminium based alloys.
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