Journal
PHILOSOPHICAL MAGAZINE LETTERS
Volume 92, Issue 11, Pages 647-655Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500839.2012.714082
Keywords
Portevin-Le Chatelier effect; Portevin-Le Chatelier band strain; dynamic strain aging; serrated flow; digital image correlation
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Funding
- ecoEII Track A
- Initiative for Automotive Manufacturing Innovation (iAMi)
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Experimental measurements of stress drops and band strains in type-B Portevin-Le Chatelier (PLC) bands were carried out for 5xxx series Al-Mg sheets with Mg content between 1.8 and 4.5 wt%. While the stress drops increase with global strain, the band strain values in all the samples follow a common linear relationship with global strain. The results indicate that the type-B PLC band strain is independent of solute content at given strain rate.
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