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<p>The article presents the results of studying the influence of thermal impact on structure formation during multilayer cladding of low-alloyed bainite-class metal. The structure of such metal, formed under the influence of partial recrystallization and tempering effects, is characterized by a&#xa0;change in the morphology of bainitic ferrite with a&#xa0;predominance of high-angle grain boundaries (θ &gt; 15 deg.) in the clad metal. It was found that in order to form a&#xa0;smooth hardness gradient while transitioning from the clad to the base metal (carbon steel), it is necessary to perform cladding under conditions that provide a&#xa0;rate of energy input of at least 18 kJ/cm. The conducted thermal cycling of the composition “base metal—sublayer—wear-resistant layer” has shown the potential for using the developed low-carbon low-alloyed metal as a&#xa0;sublayer for wear-resistant cladding of metallurgical process tools.</p>

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Prospects of application of low-alloyed bainite class metal for sublayer formation during multilayer cladding of metallurgical equipment parts

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • I. V. Zorin,
  • S. A. Fastov,
  • V. I. Lysak,
  • E. I. Storozheva,
  • V. O. Kharlamov,
  • A. S. Morozov

摘要

The article presents the results of studying the influence of thermal impact on structure formation during multilayer cladding of low-alloyed bainite-class metal. The structure of such metal, formed under the influence of partial recrystallization and tempering effects, is characterized by a change in the morphology of bainitic ferrite with a predominance of high-angle grain boundaries (θ > 15 deg.) in the clad metal. It was found that in order to form a smooth hardness gradient while transitioning from the clad to the base metal (carbon steel), it is necessary to perform cladding under conditions that provide a rate of energy input of at least 18 kJ/cm. The conducted thermal cycling of the composition “base metal—sublayer—wear-resistant layer” has shown the potential for using the developed low-carbon low-alloyed metal as a sublayer for wear-resistant cladding of metallurgical process tools.