INFLUENCE OF PHOSPHATIZED SURFACE LAYER ON CORROSION RESISTANCE OF Mg-Al-RE ALLOY

Autor:	Katarína Miková, Filip Pastorek, Libor Trško, Sylvia Dundeková
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	phosphatized surface corrosion resistance lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials AE21 exposure test
Zdroj:	Materiálové Inžinierstvo, Vol 22, Iss 3, Pp 119-125 (2015)
ISSN:	1338-6174 1335-0803
Popis:	This contribution deals with evaluation of the corrosion resistance of extruded Mg-2Al-1RE (AE21) magnesium alloy in the state before and after treatment of ground surface by selected phosphatizing procedure. Specimens were exposed to 0.1M NaCl solution for several time periods starting from 5 minutes up-to 168 hours at room temperature of 22 ± 1 °C. Afterwards electrochemical impedance spectroscopy was carried out on the exposed specimens. Based on the results obtained from the electrochemical tests and visual observation of corrosion attack progress, positive or negative impact of selected phosphating process on the corrosion resistance of Mg-2Al-1RE magnesium alloy under given conditions was assessed.
Databáze:	OpenAIRE
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