PL EN


Preferences help
enabled [disable] Abstract
Number of results
2012 | 122 | 3 | 614-617
Article title

Substantially Higher Corrosion Resistance in AE42 Magnesium Alloy through Corrosion Layer Stabilization by ECAP Treatment

Content
Title variants
Languages of publication
EN
Abstracts
EN
The corrosion properties of magnesium alloy AE42, just extruded and with posterior eight passes through equal channel angular pressing after extrusion, were investigated in 0.1 M NaCl by electrochemical impedance spectroscopy. The obtained samples were compared using scanning electron microscopy micrographs of the corrosion layers created on the surface of the specimens. The background of the substantial higher corrosion resistance of the samples after equal channel angular pressing treatment was found to be the much thicker and stable corrosion layer and smaller separating fragments in comparison with the just extruded samples. The lowering of the grain size by severe plastic deformation, especially by the equal channel angular pressing treatment was found to be also responsible for the enhancement of the corrosion resistance in AE42 class of magnesium alloys.
Keywords
EN
Contributors
author
  • Department of Physics of Materials, Charles University, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic
author
  • Department of Physics of Materials, Charles University, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic
author
  • University of Žilina, Department of Materials Engineering, Žilina, Slovak Republic
References
  • [1] B.L. Mordike, T. Ebert, Mater. Sci. Eng. A 302, 37 (2001)
  • [2] D.G. Enos, Tech. Report 33, 2 (1997)
  • [3] L. Škublová, Ph.D. thesis, University of Zilina, 2010
  • [4] M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solutions, 2nd English ed., Tex.: National Association of Corrosion Engineers, Houston 1974
  • [5] B. Hadzima, M. Janecek, M. Bukovina, R. Kral, Int. J. Mater. Res. 100, 1213 (2009)
  • [6] J. Zhao, Z. Wang, S. Sun, D. Zhao, L. Ren, W. Fu, J. Cent. South Univ. Technol. 16, 0349 (2009)
  • [7] G. Baril, G. Galicia, C. Deslouis, N. Pébère, B. Tribollet, V. Vivier, J. Electrochem. Soc. 154, C108 (2007)
  • [8] W. Liu, F. Cao, L. Chang, Z. Zhang, J. Zhang, Corros. Sci. 51, 1334 (2009)
  • [9] G. Baril, N. Pébère, Corr. Sci. 43, 471 (2011)
  • [10] G. Galicia, N. Pébère, B. Tribollet, V. Vivier, Corr. Sci. 51, 1789 (2009)
  • [11] L. Skublova, B. Hadzima, M. Bukovina, V. Skorik, J. Machine Manufact. 49, 18 (2009)
  • [12] B. Hadzima, M. Bukovina, P. Doležal, Mater. Eng./Mater. Inž. 17, 14 (2010)
  • [13] B. Hadzima, M. Janeček, R.J. Hellmig, Y. Kutnyakova, Y. Estrin, Mater. Sci. Forum 503-504, 883 (2006)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv122z3p46kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.