Abstract
1. Alloying of manganese cast iron with tungsten (up to 0.5%) increases its wear resistance in dry sliding friction and also increases the wear resistance of steel rollers in wear tests. 2. The amounts of martensite and carbide in manganese cast iron with tungsten increase, and the amounts of austenite and graphite decrease. The ratio of Sα/Sγ and the lattice constant of austenite also increase. 3. Alloying of manganese cast iron with tungsten favors a more intensive martensitic transformation in the surface layers, and consequently greater selfhardening in the process of wear. The lattice constant decreases in the surface layers of manganese cast iron with tungsten in the process of friction.
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