The structure and properties of an Mg–Zn–Ca alloy processed by high‐pressure torsion (HPT) are investigated. Microstructure is studied by transmission electron microscopy, scanning electron microscopy, and X‐ray diffraction. An enhanced microhardness of 990 MPa is observed in the HPT‐processed samples due to an uniform microstructure with a grain size of 150 nm. After additional annealing at 200 °C, the ultrafine‐grained alloy demonstrates an ultimate tensile strength of 270 MPa with a ductility of 9%.
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Kulyasova et al. (2015) studied this question.
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