Publication detail

Influence of strain rate on deformation mechanisms of an AZ31 magnesium alloy

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

2013

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"
}