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Paper Titles
High Strain Rate Blow Formability of Newly Developed Al-Mg-High-Mn Alloy
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A Numerical Simulation of Superplastic Double-Sided Roll Forming of Discal Parts
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Forging of Articles out of Aluminum Alloys under Superplastic Conditions – Difficulties and Methods of their Overcoming
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Microstructural Control of a Zn-22Al Alloy by Rolling Process
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Extraordinary High Strain Rate Superplasticity of an Al-Mg-Sc-Zr Alloy Subjected to Equal Channel Angular Pressing
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Research on Quick Superplastic Forming for Aluminium Alloy Sheet
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Low Temperature Superplasticity of Hydrostatically Extruded Mg-Al-Zn Alloys
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Microstructure Control and Mechanical Properties of Multipass Friction Stir Processed High Strength Aluminum Alloy
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New Type of Ultra-Fine Grained Microstructure in Ti-6Al-4V Alloy for Enhancing Superplasticity
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Extraordinary High Strain Rate Superplasticity of an Al-Mg-Sc-Zr Alloy Subjected to Equal Channel Angular Pressing

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Abstract:

Unique superplastic elongations up to 4100% were achieved at 450°C in the strain rate range of 10-2-10-1 s-1 for Al-Mg-Sc-Zr alloy with a grain size ~1 μm processed by warm-to-hot equal channel angular pressing. Such a behavior is attributed to the synergy of complementary factors resulted in high homogeneity and stability of ultrafine-grained microstructure and superplastic flow, involving large proportion of high-angle grain boundaries, presence of dispersoids of aluminides of transition metals and negligible amount of coarse excess phases.

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Periodical:

Materials Science Forum (Volume 735)

Pages:

295-300

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.735.295

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Online since:

December 2012

Authors:

Elena Avtokratova, Oleg Sitdikov, Michael Markushev, Radik R. Mulyukov

Keywords:

Aluminium Alloy, Microstructure, Severe Plastic Deformation (SPD), Superplasticity

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