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Abstract <p>The structure, phase composition, and hardness of the Fe–Al compositional coating in the initial state and after annealing are studied. It is established that annealing of the coating in the temperature range from 400 to 550°C for 10 hours leads to reactional diffusion between steel and aluminum particles ensuring the formation of different amounts of Al<sub>13</sub>Fe<sub>4</sub>, Al<sub>3</sub>Fe, Al<sub>5</sub>Fe<sub>2</sub>, AlFe, AlFe<sub>3</sub> intermetallidic compounds and an increase in the hardness of the coating. A scheme of structural-phase transformations between adjacent particles of a compositional coating during its annealing is proposed.</p>

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Formation of Structure and Phase Composition During Annealing of a Fe–Al Compositional Coating Obtained by High-Speed Metallization

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • E. V. Astrashab,
  • A. N. Grigorchik,
  • V. A. Kukareko,
  • M. A. Belotserkovsky

摘要

Abstract

The structure, phase composition, and hardness of the Fe–Al compositional coating in the initial state and after annealing are studied. It is established that annealing of the coating in the temperature range from 400 to 550°C for 10 hours leads to reactional diffusion between steel and aluminum particles ensuring the formation of different amounts of Al13Fe4, Al3Fe, Al5Fe2, AlFe, AlFe3 intermetallidic compounds and an increase in the hardness of the coating. A scheme of structural-phase transformations between adjacent particles of a compositional coating during its annealing is proposed.