Conditions for the initiation of strain bursts in the Portevin-Le Chatelier effect
Journal Article
·
· Scripta Materialia
- Masaryk Univ., Brno (Czech Republic). Faculty of Science
In tests carried out at constant stress rate, the Portevin-Le Chatelier effect is manifested as a discontinuity in the load-elongation (stress-strain) curves in form of strain bursts which obey similar rules as serrations in constant-strain-rate tests. Experiments were conducted with an aluminium alloy containing 3 wt.% magnesium. The samples were solution treated at 400 C for 15 minutes and quenched in water. Tensile tests were carried out at different stress rates {dot {sigma}} at room temperature where the Portevin-Le Chatelier effect is well pronounced.
- OSTI ID:
- 271636
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 4 Vol. 35; ISSN 1359-6462; ISSN XZ503X
- Country of Publication:
- United States
- Language:
- English
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