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Metals 2016, 6(5), 120; doi:10.3390/met6050120

The Influence of Specimen Thickness on the Lüders Effect of a 5456 Al-Based Alloy: Experimental Observations

Chinese Academy of Science Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China
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Academic Editor: Nong Gao
Received: 11 March 2016 / Revised: 16 May 2016 / Accepted: 17 May 2016 / Published: 20 May 2016
(This article belongs to the Special Issue Aluminum Alloys)
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Abstract

For the first time ever, a thickness dependence of the Lüders effect in an Al-based alloy is demonstrated. A three-dimensional digital image correlation method was used to gain insight into the Lüders band velocity and the Lüders strain. The results revealed that both the strain and velocity depend on the specimen thickness. The strain increases, whereas the velocity decreases, with decreasing specimen thickness. Moreover, the plot of the strain vs. the velocity concurs with the global deformation compatibility. View Full-Text
Keywords: Lüders effect; digital image correlation; thickness dependence; 5456 Al-based alloy Lüders effect; digital image correlation; thickness dependence; 5456 Al-based alloy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Cai, Y.-L.; Yang, S.-L.; Fu, S.-H.; Zhang, Q.-C. The Influence of Specimen Thickness on the Lüders Effect of a 5456 Al-Based Alloy: Experimental Observations. Metals 2016, 6, 120.

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