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The influence of corrosion on the erosion of aluminium by aqueous silica slurries

Li, Y and Burstein, GT and Hutchings, IM (1995) The influence of corrosion on the erosion of aluminium by aqueous silica slurries. Wear, 186-18. pp. 515-522. ISSN 0043-1648

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Abstract

The slurry erosion-corrosion behaviour of aluminium in aqueous silica slurries containing 0.5 M NaCl, acetic acid and 0.1 M Na2CO3 at open circuit has been investigated using a modified slurry erosion rig. The erosion rates of aluminium in the NaCl and acetic acid slurries were much higher than those in an aqueous slurry without electrolyte additives even though the pure corrosion component was very small. Eroded specimens were examined by scanning electron and optical microscopy. In pure aqueous slurry erosion, the basic mechanism leading to mass loss was the ductile fracture of flakes formed on the eroded surface. In corrosive slurries, however, the mass loss was enhanced by cracking of the flakes induced by stress and corrosion. © 1995.

Item Type: Article
Uncontrolled Keywords: Aluminium Corrosion Erosion Slurry
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:21
Last Modified: 08 Dec 2014 02:26
DOI: