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<p>The microstructure, phase composition and distribution of chemical components in two-layer coatings obtained by the method electrospark deposition (ESD) on steel 45 (cathode) are studied. It is shown that the lower layer formed by Ni or Cu acts as a damper preventing penetration of microcracks into the cathode from the upper layers of the coatings obtained from alloys based on the Ni – Al system. The two-layer coatings in all the cases have a gradient structure constituted by columnar crystallites, the concentration of components in which varies gradually over the thickness.</p>

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Structure of Combined Intermetallic Electrospark Coatings on Steel 45

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • S. N. Khimukhin,
  • K. P. Eremina,
  • V. K. Khe

摘要

The microstructure, phase composition and distribution of chemical components in two-layer coatings obtained by the method electrospark deposition (ESD) on steel 45 (cathode) are studied. It is shown that the lower layer formed by Ni or Cu acts as a damper preventing penetration of microcracks into the cathode from the upper layers of the coatings obtained from alloys based on the Ni – Al system. The two-layer coatings in all the cases have a gradient structure constituted by columnar crystallites, the concentration of components in which varies gradually over the thickness.