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Open AccessFeature PaperArticle

Improved Formability of Mg-AZ80 Alloy under a High Strain Rate in Expanding-Ring Experiments

1
Department Materials Engineering, NRCN, P.O. Box 9001, Beer-Sheva 84190, Israel
2
Israel Atomic Energy Commission, P.O. Box 7061, Tel-Aviv 61070, Israel
3
Department Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
4
Department Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
*
Author to whom correspondence should be addressed.
Materials 2018, 11(2), 329; https://doi.org/10.3390/ma11020329
Received: 15 January 2018 / Revised: 10 February 2018 / Accepted: 14 February 2018 / Published: 24 February 2018
(This article belongs to the Special Issue Intermetallic Alloys: Fabrication, Properties and Applications 2017)
Magnesium alloys offer a favored alternative to steels and aluminum alloys due to their low density and relatively high specific strength. Their application potentials are, however, impeded by poor formability at room temperature. In the current work, improved formability for the commercial magnesium AZ80 alloy was attained through the application of the high-rate electro-magnetic forming (EMF) technique. With the EMF system, elongation of 0.2 was achieved while only 0.11 is obtained through quasistatic loading. Systematic microstructural and textural investigations prior, during and post deformation under high strain-rate experiments were carried out using electron back-scattered diffraction (EBSD) and other microscopic techniques. The analysis indicates that enhanced elongation is achieved as a result of the combination of deformation, comprising basal and non-basal slip systems, twinning and dynamic recrystallization. An adopted EMF-forming technique is tested which results in enhanced elongation without failure and a higher degree of dynamically annealed microstructure. View Full-Text
Keywords: magnesium alloy; forming; deformation; recrystallization; electron back-scattered diffraction; twinning; texture; slip magnesium alloy; forming; deformation; recrystallization; electron back-scattered diffraction; twinning; texture; slip
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MDPI and ACS Style

Samuha, S.; Kahana, E.; Sadot, O.; Shneck, R.Z. Improved Formability of Mg-AZ80 Alloy under a High Strain Rate in Expanding-Ring Experiments. Materials 2018, 11, 329.

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