caa a22 4500 445860278 CHVBK 20180317145440.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s11041-011-9381-3 doi (NATIONALLICENCE)springer-10.1007/s11041-011-9381-3 Development of ultrafine-grained magnesium alloy AZ31 by multi-pass warm rolling [Elektronische Daten] [S. Murty, Niraj Nayan, S. Sharma, K. Kumar, P. Sinha] High-strength bulk ultrafine-grained magnesium alloy AZ31 bars were successfully developed in this study using multi-pass warm rolling. AZ31 bars of 12mm diameter and several meters length were produced by multi-pass warm rolling of 45 ×45mm forged blocks at 250°C and 300°C. The yield strength of warm-rolled rods doubled without any apparent loss of elongation. X-ray diffraction analysis revealed that the fractions of the basal planes oriented along and perpendicular to the rolling directions are nearly similar in intensity levels, indicating no strong texture along the rolling direction. The drastic improvement in mechanical properties is attributed to the ultrafine-grained microstructure in the warm-rolled specimens, whereas the absence of the loss of elongation is attributed to the fewer number of twins. Springer Science+Business Media, Inc., 2011 magnesium alloys nationallicence mechanical properties nationallicence structute nationallicence warm rolling nationallicence Murty S. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut Nayan Niraj Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut Sharma S. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut Kumar K. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut Sinha P. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut Metal Science and Heat Treatment Springer US; http://www.springer-ny.com 53/5-6(2011-09-01), 270-273 0026-0673 53:5-6<270 2011 53 11041 https://doi.org/10.1007/s11041-011-9381-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11041-011-9381-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Murty S. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut NATIONALLICENCE 700 1- Nayan Niraj Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut NATIONALLICENCE 700 1- Sharma S. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut NATIONALLICENCE 700 1- Kumar K. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut NATIONALLICENCE 700 1- Sinha P. Materials and Metallurgy Group, Materials and Mechanical Engineering Entity, Vikram Sarabhai Space Center, 695 022, Trivandrum-, India aut NATIONALLICENCE 773 0- Metal Science and Heat Treatment Springer US; http://www.springer-ny.com 53/5-6(2011-09-01), 270-273 0026-0673 53:5-6<270 2011 53 11041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer