Effect of Equal Channel Angular Pressing and Annealing on Corrosion Resistance of Al-Cu Alloy

Abstract:

Al-3.9wt.%Cu alloy was subjected to equal channel angular pressing (ECAP) and subsequent low temperature annealing treatment, and the corrosion resistance of the samples was investigated by potentiodynamic polarization measurements in 3.5% NaCl solution. The results show that the corrosion rate of the ultrafine-grained alloy increases, in comparison with the coarse-grained alloy. Meanwhile, it is noted that the corrosion resistance of the alloy subjected to ECAP can be improved by relief annealing.

• Periodical: Advanced Materials Research (Volume 803)
• Pages: 226-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.803.226
• Online since: September 2013
• Authors: Da Ran Fang, Chun Liu, Feng Fang Liu
• Keywords: Al-Cu Alloys, Annealing, Corrosion Resistance, Equal-Channel Angular Pressing (ECAP)

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