Advanced SearchSearch Tips
Corrosion analysis of the duplex aluminum alloys
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Corrosion analysis of the duplex aluminum alloys
Choi, In Kyu; Kim, Si Myeong; Kim, Sang Ho;
  PDF(new window)
Corrosion characteristic of the duplex Al-Mg-Si alloys with low, commercial and high solute contents were studied using an anodic polarization test in 1M NaCl solution at room temperature. Polarization range condition of the experiment were form .0.3V to .1.3V with a 0.2 mV scanning speed. The exchange current density means corrosion rate of the low solute alloy was low as about , and that of the high solute alloy was high as . The difference was mainly attributed to the inter-granular precipitates and Si which could make a galvanic corrosion on the aluminum base. The amount of precipitates was greater in high solute alloy at mainly in grain boundary. While, the extruded alloys had better corrosion resistance than the cast alloy because the silicon precipitates become coarse during the extrusion process.
corrosion analysis;Al-Mg-Sl alloy;anodic polarization;polarization resistance;;Si;
 Cited by
K. T. Kim, J. Kor . Foundrymen's Soc. 31(2013) 29.

J. C. Kim, S. K. Cheong : J. Kor. Trans. Kor. Soc. Mech. Eng. 36 (2012) 1382.

L. Y. Jae, K. W. Guk, E. K. Jun, L. K.Ahn, J. Kor. Trans. Mater. process. 18(2009) 296. crossref(new window)

Dietrich Altenpoh l(Ed.) : Aluminum: Technology, Applications and Environment: A Profile of a Modern Metal Aluminum from Within, 6th cd, TMS, Washington, (1998) 21.

European Aluminum Assocation (Ed.) : Aluminium in Cars-Unlocking the Light-Weighting Potential, 1st cd, EAA, Brussel, (2012) 15.

S. H. Kim, S. S. Kim, Int. J. Precis. Eng. Manuf. 6(2005) 56.

J. H. Rhee, J. H. Lee, J. Kor. Inst. Surf. Eng. 48(2015) 70.

J. R. Davis (Ed.) : Corrosion of Aluminum and Aluminum Alloys, 2nd cd, ASM International, Ohio, (1999) 4.

Cristian Vargel, Corrosion of Aluminium, Dunod Paris(Ed.), 1st cd, ELSEVIER Ltd, Amsterdam, (2004) 116

R. Escalera-Lozano, M. I. Pech-Canul, M. A. Pech-Canul, M. Montoya-Davila, A. Uribe-Salas : Open. Corrosion. J. 3 (2010) 75.

F. L. Zeng, Z. L. Wei, Trans. Nonferrous Met. Soc. 21(2011) 2565.