Abstract
In this study, we investigated the detwinning phenomenon of in-plane compressed E-form magnesium (Mg) alloy sheet systematically using in situ tensile test combined with electron backscattered diffraction (EBSD ) technique. Microstructure and microtexture evolutions were analyzed at different tensile strains during the in situ tensile test . The detwinning phenomenon in E-form Mg alloy was found to be linked to both twin boundary mobility and the interaction of their boundaries with dislocations. The pre-compressed sheet of E-form Mg alloy effectively accommodated the thickness direction strains generated during the in situ tensile test . The effect of detwinning on formability and mechanical behavior of the E-form Mg alloy was also examined. EBSD results indicate that most of the deformation twins formed during in-plane compression were removed when the load is reversed during the in situ tensile test .
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Acknowledgements
This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT, Government of Korea (NRF-2016M3C1B5906955), and the Basic Science Research Program through the NRF funded by the Ministry of Education, Government of Korea (NRF-2014R1A6A1030419).
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Singh, J., Kim, MS., Lee, SE., Kang, JH., Choi, SH. (2019). An Investigation of Detwinning Behavior of In-plane Compressed E-form Mg Alloy During the In Situ Tensile Test. In: Joshi, V., Jordon, J., Orlov, D., Neelameggham, N. (eds) Magnesium Technology 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05789-3_30
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