Stress Corrosion of an Aluminum Alloy in Sodium Chloride Solution under Different Temperatures and Stresses

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This paper applies subjective speckle method to investigate the effects of temperature and stress on the initial process of stress corrosion of an aluminum alloy 2024-T3. Considering the sensitivity of this observational method, the roughness of surface is used to represent the degree of corrosion. Stress corrosion experiments are carried out by displacement-controlled loading on specimens of Al2024-T3 in the thickness of 2 mm board in 3.5% sodium chloride solution. The solution is controlled at several temperature levels from 22°C to 80°C. The results of experiments show that: the rate of corrosion increases fast concomitance the increase of temperature when stress is constant; at the same temperature and the load range used, the effect of stress is not very evident on the rate of corrosion; the effect of temperature is higher on the rate of corrosion in the stress corrosion than that in general corrosion without stress.

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka

Pages:

1337-1342

DOI:

10.4028/www.scientific.net/KEM.261-263.1337

Citation:

C. Y. Ruan and H. J. Shi, "Stress Corrosion of an Aluminum Alloy in Sodium Chloride Solution under Different Temperatures and Stresses", Key Engineering Materials, Vols. 261-263, pp. 1337-1342, 2004

Online since:

April 2004

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Price:

$35.00

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