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<p>In this study, the wear and corrosion behavior of gas-nitrided high manganese steel (HMS) was investigated. Vacuum gas nitriding was carried out for surface treatment of HMS at 520 and 570&#xa0;°C for 12, 18 and 24&#xa0;h. The base metal contained α and ε martensite, while austenite was also observed in heat-treated base metal. Although all gas-nitrided samples contain Fe<sub>3</sub>N, Fe<sub>4</sub>N, γ, α and ε martensite, FeSi phase was only determined in N1-N6 samples. Expanded martensite and white layer (complex S phase) were observed in N1-N6 and N7-12, respectively. The gas-nitriding process significantly increased the surface hardness of HMS due to the iron nitride. Daimler-Benz Rockwell-C adhesion test shows that gas-nitriding HMS has sufficient adhesion behavior. The gas-nitriding process increases the wear and corrosion resistance of the HMS significantly.</p>

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Influence of Vacuum Gas Nitriding on Wear and Corrosion Behavior of a High Manganese Steel

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Cihangir Tevfik Sezgin,
  • Fatih Hayat

摘要

In this study, the wear and corrosion behavior of gas-nitrided high manganese steel (HMS) was investigated. Vacuum gas nitriding was carried out for surface treatment of HMS at 520 and 570 °C for 12, 18 and 24 h. The base metal contained α and ε martensite, while austenite was also observed in heat-treated base metal. Although all gas-nitrided samples contain Fe3N, Fe4N, γ, α and ε martensite, FeSi phase was only determined in N1-N6 samples. Expanded martensite and white layer (complex S phase) were observed in N1-N6 and N7-12, respectively. The gas-nitriding process significantly increased the surface hardness of HMS due to the iron nitride. Daimler-Benz Rockwell-C adhesion test shows that gas-nitriding HMS has sufficient adhesion behavior. The gas-nitriding process increases the wear and corrosion resistance of the HMS significantly.