Experimental And Boundary Element Method Study On The Effect Of Stress On The Polarization Curve Of Cast Aluminum Alloy In Sodium Chloride Solution

Keywords

A. Aluminium; B. Modelling studies; B. Polarization; C. Effects of strain; C. Passive films; C. Stress corrosion

Abstract

The effect of stress on the polarization curve of high pressure die cast aluminum alloy in sodium chloride solution was evaluated by mechano-electrochemical experiments and boundary element electrostatics simulations. The polarization curve was measured under a constant stress condition, and a decrease in natural potential due to stress was observed. A periodic arrangement of intact and damage surfaces was assumed in the mechanically damaged oxide film, and the polarization curve of the damage surface was identified. The simulation results showed that the decrease in natural potential is explained by the nucleation of the damage surface by plastic strain.

Publication Date

3-1-2018

Publication Title

Corrosion Science

Volume

132

Number of Pages

136-145

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.corsci.2017.12.019

Socpus ID

85041642215 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85041642215

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