Deformation mechanisms in an AZ31 cast magnesium alloy as investigated by the acoustic emission technique

Meza Garcia, E.; Dobron, P.; Bohlen, J.; Letzig, D.; Chmelik, F.; Lukac, P.; Kainer, K.U.

Journalpaper

Deformation mechanisms in an AZ31 cast magnesium alloy as investigated by the acoustic emission technique

Abstract

Cast AZ31 magnesium alloy was deformed in tension and compression at temperatures between 25 and 350 °C and at a constant strain rate of 10−3 s−1. Measurements of the acoustic emission (AE) during testing are presented and related to the microstructure of the sample material. The AE count rates increase with increasing temperature from room temperature to a maximum at 230 °C. At higher temperatures they decrease. This behaviour is discussed with a view to the role of twinning during deformation at elevated temperature.

Direct Link to Publication DOI Icon

DOI Link to Publication

URL: https://publications.hereon.de/id/24905/
Authors:Meza Garcia, E., Dobron, P., Bohlen, J., Letzig, D., Chmelik, F., Lukac, P., Kainer, K.U.
Year:2007
In: Materials Science and Engineering A
Volume:462
Issue:1-2
Pages:297 - 301
Publisher:Elsevier
Type:Journalpaper
ISSN: 0921-5093
Cite as: Meza Garcia, E.; Dobron, P.; Bohlen, J.; Letzig, D.; Chmelik, F.; Lukac, P.; Kainer, K.U.: Deformation mechanisms in an AZ31 cast magnesium alloy as investigated by the acoustic emission technique. In: Materials Science and Engineering A. Vol. 462 (2007) 1-2, 297 - 301. (DOI: 10.1016/j.msea.2006.02.469)