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Sökning: LAR1:ltu > (2010-2019) > Estniska

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  • Syed, Abdul Khadar, et al. (författare)
  • Pindtöödeldud ja järeloksüdeeritud tööriistateraste triboloogiline käitumine toatemperatuuril ning 400°C juures : [Tribological behaviour of surface-treated and post-oxidized tool steels at room temperature and 400 °C]
  • 2010
  • Ingår i: Estonian Journal of Engineering. - Tallin : Estonian Academy Publishers. - 1736-6038. ; 16:2, s. 123-134
  • Tidskriftsartikel (refereegranskat)abstract
    • The primary focus of this investigation is on tribological properties of plasma nitrided and post-oxidized tool steels during sliding against ultra-high-strength boron steel. The experi­mental work has been carried out at room temperature and at 400 °C by using a high-temperature pin on disc tribometer. The experimental materials were tool steels of three different compositions, which were plasma nitrided and post-oxidized at 500 °C. One of the tool steels was also post-oxidized at 480 and 520 °C. The results have shown that the friction and wear characteristics are influenced by the test temperature and the post-oxidizing temperature. The tool steel, post-oxidized at 500 °C, resulted in better friction and wear performance at room temperature and also improved wear resistance at elevated temperature. The observed wear mechanisms are mainly adhesive at room temperature and a combination of adhesive and abrasive at elevated temperature.
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