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Improvement of Ductility at Room Temperature of Mg-3Al-1Zn Alloy Sheets Processed by Equal Channel Angular Pressing

Authors :
Sangbong Yi
Dietmar Letzig
Jan Bohlen
Wolfram Volk
Ronland Golle
José Victoria-Hernández
Joungsik Suh
Source :
Suh, J.; Victoria-Hernandez, J.; Letzig, D.; Golle, R.; Yi, S.; Bohlen, J.; Volk, W.: Improvement of ductility at room temperature of Mg-3Al-1Zn alloy sheets processed by equal channel angular pressing. In: Procedia Engineering. Vol. 81 (2014) 1517-1522. (DOI: 10.1016/j.proeng.2014.10.183)
Publication Year :
2014
Publisher :
Elsevier BV, 2014.

Abstract

The effect of process temperature on the microstructure and mechanical properties of Mg-3Al-1Zn sheets processed by ECAP is investigated in this work. A novel tool was developed for the implementation of ECAP to deform sheets with dimension of 200 mm × 200 mm × 1.8 mm. ECAP trials were performed successfully at three temperatures of 175, 200 and 225 oC using an internal channel angle of 130o. After the ECAP process, significant grain refinement and texture changes were observed in the ECAPed sheets. The tensile tests at room temperature showed that uniform elongation along the direction of ECAP process increases with the process temperature. The highest uniform strain was found at 17% using a processing temperature of 225 oC. The tensile uniform elongation at room temperature was improved by 31% in comparison with the as-received material.

Details

ISSN :
18777058
Volume :
81
Database :
OpenAIRE
Journal :
Procedia Engineering
Accession number :
edsair.doi.dedup.....7e683fe02c2cab1fa19cf4d42298f1ee
Full Text :
https://doi.org/10.1016/j.proeng.2014.10.183