Publication detail

Mechanical properties of extruded and ECAP processed magnesium alloy AZ91 at elevated temperature

ŠTĚPÁNEK, R. PANTĚLEJEV, L. MOSTAED, E. VEDANI, M.

English title

Mechanical properties of extruded and ECAP processed magnesium alloy AZ91 at elevated temperature

Type

conference paper

Language

en

Original abstract

In this paper tensile properties at elevated temperature of extruded AZ91 magnesium alloy and the same alloy further processed by ECAP (exECAP) are compared. The tensile tests were performed at room temperature and for the temperature range of 100 to 300 °C. Loading speed 2 mm/min was used for the tests. At room temperature mechanical properties except elongation were slightly higher for extruded material yet still very similar to properties of exECAPed material. Overall trend of properties evolution with increasing temperature was also similar but the decrease of strength or the increase of elongation and reduction of area respectively is more intensive for exECAPed material. Elongation of exECAPed material exceeded elongation of extruded material more than twice at 300 °C and with value of ~260% this alloy exhibited pseudosuperplastic behavior.

English abstract

In this paper tensile properties at elevated temperature of extruded AZ91 magnesium alloy and the same alloy further processed by ECAP (exECAP) are compared. The tensile tests were performed at room temperature and for the temperature range of 100 to 300 °C. Loading speed 2 mm/min was used for the tests. At room temperature mechanical properties except elongation were slightly higher for extruded material yet still very similar to properties of exECAPed material. Overall trend of properties evolution with increasing temperature was also similar but the decrease of strength or the increase of elongation and reduction of area respectively is more intensive for exECAPed material. Elongation of exECAPed material exceeded elongation of extruded material more than twice at 300 °C and with value of ~260% this alloy exhibited pseudosuperplastic behavior.

Keywords in English

AZ91; ECAP; tensile properties; elevated temperature; superplasticity

Released

03.04.2017

Publisher

Trans Tech Publications

Location

Švýcarsko

ISBN

978-3-0357-1018-2

ISSN

0255-5476

Book

Metallography XVI

Volume

891

Pages from–to

366–371

Pages count

6

BIBTEX


@inproceedings{BUT132424,
  author="Roman {Štěpánek} and Libor {Pantělejev} and Ehsan {Mostaed} and Vedani {Maurizio} and Maurizio {Vedani},
  title="Mechanical properties of extruded and ECAP processed magnesium alloy AZ91 at elevated temperature",
  booktitle="Metallography XVI",
  year="2017",
  volume="891",
  month="April",
  pages="366--371",
  publisher="Trans Tech Publications",
  address="Švýcarsko",
  isbn="978-3-0357-1018-2",
  issn="0255-5476"
}