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The article presents a combined technology for the restoration and strengthening of worn surfaces of stainless steel machine parts operating under radiation exposure. The method serves as an alternative to the application of cobalt-containing wear-resistant materials such as T16K6 and VK8. The method includes: conducting carburizing on the worn surface of the part by electric spark alloying (CESA) at a discharge energy of Wp = 3.4 J, alternately applying an aluminum coating by electrospark alloying (ESA) at Wp = 0.35 J and Wp = 0.55 J, applying an ESA coating of a refractory wear-resistant metal selected from the group: Ti, V, W, and applying a polymer material reinforced with tungsten carbide powder. The analysis of the results of the metallographic studies of the coatings obtained by the proposed technology has shown that the structure of the surface coating consists of four layers. Studies have shown that the coating formed in the sequence: CESA → ESA Al → ESA W → Polymer Material reinforced with tungsten carbide (WC), has the largest thickness of the zone of increased hardness (350–410 microns), 100% continuity and roughness of the surface layer Ra = 2.1 microns. When using martensitic-austenitic stainless steel of EN 10213 GX2CrNi19-11 class as a base, the surface layers formed in such a sequence have similar microstructure characteristics, thickness values of increased hardness zones, continuity, and roughness values of surface layers. They slightly differ in surface hardness values, which reaches 9500 MPa.

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Energy Efficient Combined Technology Restoring Stainless Steel Machine Parts Which Operating Under Radiation Conditions

  • 会议论文

  • 发表日期：

    2026年

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  • Viacheslav Tarelnyk,
  • Oksana Haponova,
  • Ievgen Konoplianchenko,
  • Nataliia Tarelnyk,
  • Oleksandr Radionov

摘要

The article presents a combined technology for the restoration and strengthening of worn surfaces of stainless steel machine parts operating under radiation exposure. The method serves as an alternative to the application of cobalt-containing wear-resistant materials such as T16K6 and VK8. The method includes: conducting carburizing on the worn surface of the part by electric spark alloying (CESA) at a discharge energy of Wp = 3.4 J, alternately applying an aluminum coating by electrospark alloying (ESA) at Wp = 0.35 J and Wp = 0.55 J, applying an ESA coating of a refractory wear-resistant metal selected from the group: Ti, V, W, and applying a polymer material reinforced with tungsten carbide powder. The analysis of the results of the metallographic studies of the coatings obtained by the proposed technology has shown that the structure of the surface coating consists of four layers. Studies have shown that the coating formed in the sequence: CESA → ESA Al → ESA W → Polymer Material reinforced with tungsten carbide (WC), has the largest thickness of the zone of increased hardness (350–410 microns), 100% continuity and roughness of the surface layer Ra = 2.1 microns. When using martensitic-austenitic stainless steel of EN 10213 GX2CrNi19-11 class as a base, the surface layers formed in such a sequence have similar microstructure characteristics, thickness values of increased hardness zones, continuity, and roughness values of surface layers. They slightly differ in surface hardness values, which reaches 9500 MPa.