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Numerical-Experimental Characterization of a Superplastic AZ31 Magnesium Alloy
Materials Science Forum, 2007In this work the superplastic behaviour of a hot rolled AZ31 magnesium alloy sheet under a biaxial tension test with the blow forming technique is presented and reported. The specimen dome height and its thickness distribution, during and after the test, have been used as characterizing parameters. A numerical FE model of the test has been developed in
PALUMBO, Gianfranco +6 more
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Strain-hardening behaviour of AZ31 magnesium alloys
International Journal of Materials Research, 2009Abstract The in-plane tensile behaviour of rolled sheets of the magnesium alloy AZ31 was investigated in both an H24 state and an aged state. Whereas the very high initial strain-hardening rate decreases monotonically with strain for the H24 samples, the annealed structure exhibits a striking increase in the strain-hardening rate.
Jaroslav Balík +3 more
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Strontium additions in AZ31 magnesium alloy
2012Pekguleryuz, Mihriban Ozden (Supervisor)
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Developing superplasticity in a magnesium AZ31 alloy by ECAP
Journal of Materials Science, 2008The processing of a magnesium AZ31 alloy by equal-channel angular pressing refines the grain size to ~2.2 μm, but annealing for 30 min at 673 K coarsens the grains to ~6.0 μm. Despite this microstructural instability, the alloy is superplastic when pulled in tension at temperatures in the range of 623–723 K with elongations up to >1000% at strain rates
Figueiredo, Roberto B. +1 more
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Modelling of Superplastic Forming of AZ31 Magnesium Alloy
AIP Conference Proceedings, 2011In this study the constitutive equation of the superplastic AZ31 magnesium‐based alloy is modelled by the power law relationship between the stress, the strain and the strain‐rate and an accurate procedure for determining the constants of the material is presented.
G. Giuliano +3 more
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ACCUMULATIVE ROLL BONDING OF AZ31 MAGNESIUM ALLOY
International Journal of Modern Physics B, 2008This work conducted to investigate the effects of accumulative roll bonding (ARB) method on achieving the ultra-fine grain microstructure in AZ31 alloy. Accordingly, a number of ARB routes at 400°C, applying thickness reductions per pass of 35%, 55%, and 85% were performed.
S. M. FATEMI-VARZANEH +2 more
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Indentation creep of the wrought AZ31 magnesium alloy
Journal of Materials Science, 2012Creep behavior of a wrought Mg–3Al–1Zn (AZ31) alloy was investigated by long-term Vickers indentation testing under constant loads of 5 and 10 N and at temperatures in the range 423–523 K. Based on the steady-state power-law creep relationship, the stress exponents were determined.
R. Mahmudi +2 more
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Analysis of Superplastic Deformation of AZ31 Magnesium Alloy
Advanced Engineering Materials, 2007AZ31 is a magnesium alloy possessing good mechanical properties, which makes it particularly attractive for automotive applications. Yet, in order to advance the utilization of this alloy, a broad database of its superplastic behavior is needed. This work presents the results of a comprehensive study on the elevated temperature superplastic behavior of
F. K. Abu‐Farha, M. K. Khraisheh
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Rolling of AZ31 Magnesium Alloy Thin Strip
Materials Science Forum, 2007The simulation rolling and actual rolling of AZ31 strip with a thickness of 3mm prepared by a vertical twin roll caster (Ø250×150mm) have been made by both Gleeble-1500D thermal simulation testing machine and Ø170×300mm rolling-mill. The influence of various rolling parameters such as temperature (250°C, 300°C, 350°C and 400°C) and reduction (40%, 50 ...
Bin Jiang +4 more
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Explosion Joining of Magnesium Alloy AZ31 and Aluminum
Materials Science Forum, 2007Explosion welding has produced a large number of dissimilar joints. But the explosion welding of materials of low impact toughness and brittle nature is considered to be difficult. Magnesium, with its HCP structure, has a low capacity for plastic deformation at room temperature and moreover it has a high chemical reactivity.
Seyed Hadi Ghaderi +2 more
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