Abstract
This study investigates a biodegradable Mg–5Zn–0.3Ca alloy (ZX50) during HPT-processing and long-term heat treatments, the latter with respect to the evolution of intermetallic precipitates and vacancy clusters. Both the precipitates as well as the vacancy clusters achieve strength increases as the Zn atoms may act as potential trapping sites not only for HPT-induced dislocations but also vacancies. So far, overall increases of strength of up to 200% have been reached while keeping the Young’s modulus unchanged, thus representing an attractive improvement of mechanical properties for the actual alloy.
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Acknowledgements
The authors gratefully acknowledge the use of equipment within the Faculty Center for Nanostructure Research, the Machine Shop and Technical Services at the Faculty of Physics, University Vienna, Austria, as well as the Austrian Institute of Technology (AIT), Wiener Neustadt, Austria for the casting of the Mg bars. We also appreciate financial support from the Austrian Science Funds (FWF) within project I2815-N36 and Slovenian Research Agency (ARRS) through Research Project J2-7157.
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Ojdanic, A., Schafler, E., Horky, J., Orlov, D., Zehetbauer, M. (2018). Strengthening of a Biodegradable Mg–Zn–Ca Alloy ZX50 After Processing by HPT and Heat Treatment. In: Orlov, D., Joshi, V., Solanki, K., Neelameggham, N. (eds) Magnesium Technology 2018. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72332-7_43
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DOI: https://doi.org/10.1007/978-3-319-72332-7_43
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