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STUDY OF THE INFLUENCE OF HEATING DURATION DURING ELECTROLYTIC-PLASMA HARDENING ON THE CHARACTERISTICS OF 20GL STEEL

https://doi.org/10.53360/2788-7995-2025-2(18)-64

Abstract

This article presents a comprehensive examination of the electrolytic-plasma hardening (EPH) process applied to 20GL structural steel, a material frequently used in the automotive, transport, and various other industries. The relevance behind this research lies in the necessity to enhance the performance of steels that face high mechanical loads, elevated temperatures, and corrosive environments. Experimental findings reveal that electrolytic-plasma treatment substantially increases the hardness of 20GL steel to approximately 600 HV on average. Additionally, prolonging the heating duration contributes significantly to greater hardness, playing a decisive role in bolstering wear resistance under load. Microstructural analysis confirms the formation of a fine-grained martensitic phase, highlighting the steel’s transformation and strengthening. Furthermore, the study emphasizes that the chemical composition of 20GL steel influences the hardness gradient from the surface inward and leads to the development of finer-grained features in the steel’s microstructure. Overall, the electrolytic-plasma process proves beneficial not only for improving mechanical attributes but also for enhancing reliability and service life of critical components. From an industrial standpoint, this technology is notable for its adaptability and cost-effectiveness, making it an attractive solution for sectors such as automotive manufacturing, construction, and the energy industry. Thus, electrolytic-plasma hardening emerges as a forward-looking method aligned with modern engineering demands, offering a promising avenue for advanced material optimization.

About the Authors

B. Rakhadilov
Plasma Science LLP
Kazakhstan

Bauyrzhan Rakhadilov – PhD, Vice-rector on scientific work,

Ust-Kamenogorsk 070000



E. Shayakhmetov
Engineering Center «Strengthening Technologies and Coatings», Shakarim University
Kazakhstan

Erzhan Shayakhmetov – Senior Lecturer of the Department of Technological Equipment,

Semey 071412



Zh. Bakyt
Engineering Center «Strengthening Technologies and Coatings», Shakarim University
Kazakhstan

Zhanel Bakyt – junior researcher of Engineering Center “Strengthening Technologies and Coatings»,

Semey 071412



S. Buresh
Engineering Center «Strengthening Technologies and Coatings», Shakarim University
Kazakhstan

Sergei Buresh – master’s student of the MTO-301 group,

Semey 071412



N. Musataeva
Engineering Center «Strengthening Technologies and Coatings», Shakarim University

Nazira Musataeva – student of the F-302 group,

Semey 071412



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For citations:


Rakhadilov B., Shayakhmetov E., Bakyt Zh., Buresh S., Musataeva N. STUDY OF THE INFLUENCE OF HEATING DURATION DURING ELECTROLYTIC-PLASMA HARDENING ON THE CHARACTERISTICS OF 20GL STEEL. Bulletin of Shakarim University. Technical Sciences. 2025;(2(18)):546-554. https://doi.org/10.53360/2788-7995-2025-2(18)-64

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ISSN 2788-7995 (Print)
ISSN 3006-0524 (Online)
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