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- W2470366934 abstract "It is the objective of this paper to demonstrate that selection of materials for minerals processing applications must be based on more appropriate strategies than have hitherto been applied. In order to maximise abrasive wear resistance, suppliers and users alike invariably specify wear consumables according to hardness, aiming for the maximum hardness consistent with sufficient ability to withstand brittle fracture. Users often complain, however, that industrial service performance shows poor correlation with laboratory abrasion tests. This paper will argue that this discrepancy reflects fundamental differences in the wear processes occurring in the two cases. Case studies will be described which demonstrate that in high-impact environments such as SAG mills, fracture toughness is at least as important as hardness in determining service life. That is, resistance to brittle cracking is important not merely in order to avoid catastrophic fracture, but also to resist micro-cracking wear processes. A number of possible mechanisms of wear · under combined impact-abrasive conditions are described. Corrosive processes can also contribute to wear, and combined corrosion-abrasion can be highly synergistic. It is shown that in some cases liquid media can influence wear rates through impact-wear processes rather than through corrosion." @default.
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- W2470366934 date "1993-01-01" @default.
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- W2470366934 title "Real life wear processes" @default.
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