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A Further Improvement in the Room-Temperature Formability of Az31-0.5Ca Magnesium Alloy Sheets by Pre-Stretching

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Document pages: 21 pages

Abstract: In the present study, pre-stretching experiments were carried out on AZ31-0.5Ca magnesium alloy to alter the microstructure and texture for enhancing its room-temperature stretch formability. The alloy samples were pre-stretched to 5 , 10 and finally to 15 and its effects on the structure, properties and performance were analyzed. Compared with the as-received alloy, the room-temperature stretch formability of the 5 -stretched sample was found to be improved by 15 . This was mainly attributed to the enhanced strain hardening capability, which in turn, is related to the evolution of tension twins and the less homogeneous microstructure of this sample.

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