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TROJANOVÁ, Z. PODRÁBSKÝ, T. LUKÁČ, P. ARMSTRONG, R. PEŠIČKA, J. FOREJT, M.
Original Title
Influence of strain rate on deformation mechanisms of an AZ31 magnesium alloy
Type
journal article - other
Language
English
Original Abstract
The paper reports mechanical properties of magnesium alloy AZ31 deformed at low and high srain rates. Material was prepared using squeeze casting technology. Compresion test were deformed at an initial strain rate of 0,000083 1/s at temperatures between room temperature and 300 grad.Celsius. Dynamic compression Hopkinson test were carried out at room temperature with impact velocities ranging from 11,2 to 21,9 m/s. Transmission electron microscopy investigations showed significant dislocation and twins densities. Results are discussed considering the importance of the activation volume determined in the stress relaxation tests obtained at the low strain rate and quite separately, the importance of adiabatic shear banding at hihg strain rates.
Keywords
Magnesium alloy; Crystal plasticity; Compression test; Dislocations; Twinning
Authors
TROJANOVÁ, Z.; PODRÁBSKÝ, T.; LUKÁČ, P.; ARMSTRONG, R.; PEŠIČKA, J.; FOREJT, M.
RIV year
2013
Released
12. 3. 2013
Publisher
Carl Hanser Verlag GmbH & Co.KG
Location
München
ISBN
1862-5282
Periodical
International Journal of Materials Research
Year of study
Number
104
State
Federal Republic of Germany
Pages from
762
Pages to
768
Pages count
7
BibTex
@article{BUT107032, author="Zuzanka {Trojanová} and Tomáš {Podrábský} and Pavel {Lukáč} and Ronald W {Armstrong} and Josef {Pešička} and Milan {Forejt}", title="Influence of strain rate on deformation mechanisms of an AZ31 magnesium alloy", journal="International Journal of Materials Research", year="2013", volume="2013", number="104", pages="762--768", doi="10.3139/146.110922", issn="1862-5282" }