Abstract
It is well established that magnesium has a considerable potential for use as a biodegradable material. This report describes the effect of processing by severe plastic deformation (SPD) on the grain refinement, mechanical behavior, biocompatibility and corrosion behavior of commercial purity magnesium. The material was received as cast slabs and processed by rolling, equal-channel angular pressing and high-pressure torsion to produce samples with average grain sizes in the range of ~0.5–300 μm. The results show that severe plastic deformation does not affect the biocompatibility. However, the corrosion behavior is affected by the processing route. Specifically, SPD processing leads to general corrosion as opposed to localized corrosion in the as-cast and hot-rolled condition.
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Acknowledgements
The authors acknowledge Prof. A.M. Goes of the Department of Immunology and Biochemistry (UFMG) for providing the human osteosarcoma cell line used in this work. The authors acknowledge support from CNPq, FAPEMIG and PPGEM. One of the authors acknowledges support from the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS (TGL).
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Silva, C.L.P., Oliveira, A.C., Costa, C.G.F. et al. Effect of severe plastic deformation on the biocompatibility and corrosion rate of pure magnesium. J Mater Sci 52, 5992–6003 (2017). https://doi.org/10.1007/s10853-017-0835-x
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DOI: https://doi.org/10.1007/s10853-017-0835-x