Development and comparison of processing maps of Mg-3Sn-1Ca alloy from data obtained in tension versus compression

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Original languageEnglish
Article number012014
Journal / PublicationIOP Conference Series: Materials Science and Engineering
Online published7 Feb 2018
Publication statusPublished - 2018


Title8th TSME-International Conference on Mechanical Engineering, TSME-ICoME 2017
Period12 - 15 December 2017



The hot workability of extruded Mg-3Sn-1Ca alloy has been evaluated by developing processing maps with flow stress data from compression and tensile tests with a view to find the effect of the applied state-of-stress. The processing maps developed at a strain of 0.2 are essentially similar irrespective of the mode of deformation - compression or tension, and exhibit three domains in the temperature ranges: (1) 350 - 425 °C, and (2) 450 - 550 °C and (3) 400 - 500 °C, the first two occurring at lower strain rates and the third occurring at higher strain rates. In all the three domains, dynamic recrystallization occurs and is caused by non-basal slip and controlled by lattice self-diffusion in the first and second domains and grain boundary self-diffusion in the third domain. The state-of-stress imposed on the specimen (compression or tension) does not have any significant effect on the processing maps.

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