Work

Atmospheric Corrosion of Aluminum Alloy 6063 Beneath Ferric Chloride Corrosion Product Droplets

Year: 2020

Type: article

Abstract: The atmospheric corrosion behavior of aluminum alloy 6063-T5 with exposure to FeCl3-containing droplet deposits has been investigated using x-ray computed tomography analysis. A voluminous corrosion product cap is formed, with iron oxyhydroxide/oxide deposits forming a coherent layer at the aluminum interface. Exposure to a single droplet is compared with exposure to multiple droplets, and the effect of corrosion product development and FeCl3 concentration on the corrosion rate has been determined. Multiple wet periods with small droplet volumes resulted in higher corrosion rates than comparable single droplet exposures.

Source: CORROSION

DOI: 10.5006/3558

Authors: S. Mahmood, C. Gallagher, D.L. Engelberg

Institutions: University of Manchester, Sellafield (United Kingdom)

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Engineering and Physical Sciences Research Council

Awards: Multiscale x-ray imaging facility for monitoring and modelling structural evolution in situ, Structural evolution across multiple time and length scales, Next Generation Multi-Dimensional X-Ray Imaging, Tomographic Imaging, Sir Henry Royce InsStitute - recurrent grant