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Article Dans Une Revue Materials Science and Engineering Technology / Materialwissenschaft und Werkstofftechnik Année : 2012

Superplastic forming of AZ31 magnesium alloy with controlled microstructure

Résumé

A recent study on post-superplastic forming properties has shown that heating time prior to testing has a major effect on the post-forming properties of superplastically-formed AZ31 Magnesium alloy sheets. To this point, there has been very little examination into the effects of pre-heating or annealing on superplastic forming. In this work, these effects are examined using AZ31 Mg alloy samples. Both tensile specimens and bulge sheets were superplastically-stretched after undergoing different annealing routes. Multiple annealing temperatures and times were examined to produce specimens with grain sizes ranging from 8 to 15 mu m, for comparison with traditional SPF results. The results show that annealing treatments can be suitable for the improvement of thinning and forming time of superplastically-formed Magnesium alloys through the control of the microstructure.
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Dates et versions

hal-01687326 , version 1 (11-01-2019)

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M. Cusick, F. Abu-Farha, Philippe Lours, Yannick Le Maoult, Gérard Bernhart, et al.. Superplastic forming of AZ31 magnesium alloy with controlled microstructure. Materials Science and Engineering Technology / Materialwissenschaft und Werkstofftechnik, 2012, 43 (9, SI), pp.810-816. ⟨10.1002/mawe.201200035⟩. ⟨hal-01687326⟩
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