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Comparative study of the slurry erosion and free-fall particle erosion of aluminum

Zu, JB and Burstein, GT and Hutchings, IM (1991) Comparative study of the slurry erosion and free-fall particle erosion of aluminum. Wear of Materials: International Conference on Wear of Materials, 1. pp. 417-423. ISSN 0192-4990

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Abstract

A study has been performed of the erosion of aluminium by silica sand particles at a velocity of 4.5 m s-1, both air-borne and in the form of a water-borne slurry. Measurements made under similar experimental conditions show that slurry erosion proceeds at a rate several times that of air-borne erosion, the ratio of the two rates depending strongly on the angle of impact. Sand particles become embedded into the metal surface during air-borne particle erosion, forming a composite layer of metal and silica, and provide the major cause of the difference in wear rate. The embedded particles giving rise to surface hardening and a significant reduction in the erosion rate. Embedment of erodent particles was not observed during slurry erosion. Lubrication of the impacting interfaces by water appears to have minimal effect on the wear of aluminium by slurry erosion.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:04
Last Modified: 26 Nov 2014 19:06
DOI: