Abstract
In favorable crystallographic texture and loading path combinations, Magnesium AZ31 deformation is dominated by twinning. A marked component of the material behavior in this regime is the spatial distribution of the accommodated strain: there is sharp strain localization at every length scale including macroscopic, stemming from an abrupt propagation of twinning events across neighboring grains (e.g., Aydiner and Telemez, Int. J. Plas. 2014(56), p. 203). Strain mapping with digital image correlation (DIC) has been instrumental in bridging length scales and highlighting strain heterogeneity levels in this material. With a multiple-optical-axis DIC apparatus, strain maps are obtained with macroscopic and microscopic resolution for the full field. For the sharp rolling texture, strain heterogeneity patterns can be directly interpreted on the micro-mechanisms of the abundant orientation. These patterns are presented at representative points of the reverse-loading cycle and interpreted with respect to operative twin and slip mechanisms.
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This work was supported by the Scientific and Technological Research Council of Turkey, TÜBİTAK, Grant No: 114M215.
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© 2017 The Minerals, Metals & Materials Society
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Kapan, E., Shafaghi, N., Uçar, S., Aydıner, C.C. (2017). Strain Localization Structures in Textured Magnesium AZ31 Under Reversed Loading via Microscopic Digital Image Correlation. In: TMS, T. (eds) TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51493-2_18
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DOI: https://doi.org/10.1007/978-3-319-51493-2_18
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