TY - GEN
T1 - Effects of environmental parameters on marine corrosion of aluminium alloys
AU - Dan, Zhenhua
AU - Muto, Izumi
AU - Hara, Nobuyoshi
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - The marine corrosion of aluminium alloys, AA1100 and AA6061 was investigated in term of the transient of the open circuit potential and polarization behaviors in a simulated marine condition. The pitting potential increased with dilution ratios of artificial seawater. The aluminium alloys passivated at lower potentials in the relatively concentrated solutions. The open circuit potential reached the passive state faster at lower solution temperature than that in higher solution temperature. The pitting potential of AA1100 and AA6061 seems independent of the test solution temperature, and the difference between pitting potential and the corrosion potential became smaller at the lower solution temperature. The involvement of the sulfate compound resulted in the increase in pitting potential and had no effects on the passive current density. The absence of the sulfate ions slowed down the formation rate of the passive film. Especially, the open circuit potential of AA6061 passivated at lower potential due to the absence of the sulfate ions. Copy; (2012) Trans Tech Publications, Switzerland.
AB - The marine corrosion of aluminium alloys, AA1100 and AA6061 was investigated in term of the transient of the open circuit potential and polarization behaviors in a simulated marine condition. The pitting potential increased with dilution ratios of artificial seawater. The aluminium alloys passivated at lower potentials in the relatively concentrated solutions. The open circuit potential reached the passive state faster at lower solution temperature than that in higher solution temperature. The pitting potential of AA1100 and AA6061 seems independent of the test solution temperature, and the difference between pitting potential and the corrosion potential became smaller at the lower solution temperature. The involvement of the sulfate compound resulted in the increase in pitting potential and had no effects on the passive current density. The absence of the sulfate ions slowed down the formation rate of the passive film. Especially, the open circuit potential of AA6061 passivated at lower potential due to the absence of the sulfate ions. Copy; (2012) Trans Tech Publications, Switzerland.
KW - Aluminium alloy
KW - Marine corrosion
KW - Open circuit potential
KW - Polarization curves
KW - Solution chemistry
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U2 - 10.4028/www.scientific.net/AMR.569.95
DO - 10.4028/www.scientific.net/AMR.569.95
M3 - Conference contribution
AN - SCOPUS:84869225545
SN - 9783037854808
T3 - Advanced Materials Research
SP - 95
EP - 98
BT - Advanced Materials Design and Mechanics
T2 - 2012 International Conference on Advanced Materials Design and Mechanics, ICAMDM 2012
Y2 - 5 June 2012 through 7 June 2012
ER -