Using the trip effect to increase abrasive wear resistance of steel

The effect of high-temperature quenching on the abrasive wear resistance of iron-carbon-chromium and iron-carbon-manganese steels (1–1.2% carbon and 18% chromium or manganese, 100Kh18 and 120G18) is studied in comparison with an iron-nitrogen-chromium steel (0Kh18A1.2) and on the friction hardening ability of these steels. The study reveals an increase in abrasive wear resistance due to the micro-TRIP effect after high-temperature quenching. It is shown that the wear resistance of the 100Kh18 steel with a metastable austenite structure and carbides after quenching from 1200 °C (ε = 3.2) is three times as high as the wear resistance of the 120G18 stable austenitic steel (ε = 1.1). The studied steels quenched from 1000–1200 °C have abrasive wear resistance exceeding the wear resistance of the 110G13L steel by 20%.