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Abrasive Wear of Nano-structured Steel: Does Hardness Matter?

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The abrasive wear of three metallurgical structures with radically different hardnesses have been investigated for the same steel. The particular steel concerned is a recent innovation capable of generating extremely fine distributions of crystals. The parent phase austenite in the alloy nevertheless has the capability of uniformly transforming into extremely fine pearlite, nanostructured bainite and plate martensite. It is found that although the abrasion rates and wear coefficients are not very different for the three states, the mechanisms of abrasion are quite different.

This talk is part of the Darwin College Science Seminars series.

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