CUED Publications database

Transitions in the erosive wear behavior of a glass-ceramic

Sparks, AJ and Hutchings, IM (1991) Transitions in the erosive wear behavior of a glass-ceramic. Wear of Materials: International Conference on Wear of Materials, 1. pp. 367-374. ISSN 0192-4990

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The mechanisms of material removal were investigated during the erosive wear of a glass-ceramic. The effects of erodent particle shape, velocity and angle were studied. Single impacts and incremental erosion tests were performed, to study the development of surface features and to elucidate the mechanisms of material removal. It was found that transitions in mechanism occurred which depended on the particle shape, impact velocity and impact angle. The mechanisms of material removal, for erosion by silica sand, changed from fine scale fracture and plastic processes below a transition point to large-scale cracking of the surface above. Spherical glass beads caused wear dominated by fatigue, with a very strong dependence of wear rate on the impact conditions. This work indicates that laboratory erosion testing of glass-ceramic and other brittle materials should reflect the conditions present in practice, and that account must be taken of possible changes in wear mechanisms.

Item Type: Article
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:09
Last Modified: 05 Oct 2017 02:16