Abstract
The two-body abrasive wear resistance of steels can be altered by microstructural variations which have little effect on the bulk hardness. Three microstructural features which can improve the two-body abrasive wear resistance of steels are strengthening by the precipitation of alloy carbides (secondary hardening), undissolved carbides and large volume fractions of retained austenite. This work compares the effects of these microstructural constituents on the two-body and three-body abrasive wear resistances. The results indicate that microstructural features which improve the two-body wear resistance have a similar influence on the three-body wear resistance.
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