Abstract
1. The wear resistance of metastable austenitic steels under abrasive wear increases with increasing amount of strain martensite forming on the working surface under the effect of abrasive particles. 2. The higher the carbon content of metastable austenitic steels is (with equal intensity of martensite formation on the working surface), the higher is their wear resistance under conditions of abrasive wear. 3. Maximal wear resistance in abrasive wear, exceeding the wear resistance of steel 110G13 by a factor of 1.4–1.8, is attained in metastable austenitic steels having sufficient intensity of deformational martensitic transformations (with the formation of 40–50% martensite on the surface subjected to wear) and high carbon content, which are decisive for improving the degree of hardening. Such a combination of properties is ensured in metastable austenitic steels containing 0.8–1.0% C, 4–7% Mn, and 2–5% Cr.
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