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Nitriding layer was prepared on Fe-Ni based alloy (HT700 alloy). The air and steam oxidation performance of nitriding layer on Fe-Ni based alloy was investigated at 650 °C. The results show that oxide of nitrided HT700 cracked and fell off from substrate after oxidation for 100 h at 650 °C in air and steam. Nitriding process may reduce the oxidation resistance of HT700 alloy. Nitrided HT700 show better oxidation resistance in air than steam at 650 °C.

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Oxidation Performance of Nitriding Layer on Fe-Ni Based Alloy at 650 °C

  • 会议论文

  • 发表日期：

    2026年

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  • Xinyuan Hu,
  • Jingyang Huang,
  • Wenwei Zhao,
  • Xingxing Zhang,
  • Limin Li,
  • Jintao Lu

摘要

Nitriding layer was prepared on Fe-Ni based alloy (HT700 alloy). The air and steam oxidation performance of nitriding layer on Fe-Ni based alloy was investigated at 650 °C. The results show that oxide of nitrided HT700 cracked and fell off from substrate after oxidation for 100 h at 650 °C in air and steam. Nitriding process may reduce the oxidation resistance of HT700 alloy. Nitrided HT700 show better oxidation resistance in air than steam at 650 °C.