ISSN 3041-1815. Physicochemical Mechanics of Materials. 2026.
Volume 62, Issue 3

Influence of surface treatment methods on plastic deformation resistance and tribological characteristics of VT8 alloy

Zakiev V. I. ORCID
State University “Kyiv Aviation Institute” (https://ror.org/01f74x078)
Vasyliv O. M. ORCID
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine (https://ror.org/02jv3yx22)
Nemanezhyn Ye. O. ORCID
SE “Ivchenko-Progress”, Zaporizhzhia, Ukraine. (https://ror.org/02mvn1p69)
Vasyliv Ch. B. ORCID
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Torba Yu. I. ORCID
SE “Ivchenko-Progress”, Zaporizhzhia, Ukraine. (https://ror.org/02mvn1p69)
Podobnyi O. V. ORCID
SE “Ivchenko-Progress”, Zaporizhzhia, Ukraine. (https://ror.org/02mvn1p69)

Keywords

Ti–6Al–3Mo alloy, electric discharge cutting, chemical polishing, sclerometry, friction coefficient.

Cite as

Zakiev V. I., Vasyliv O. M., Nemanyezhyn Ye. O., Vasyliv Сh. B., Torba Yu. I., and Podobnyi O. V. Influence of surface treatment methods on plastic deformation resistance and tribological characteristics of VT8 alloy. Physicochemical Mechanics of Materials. 2026. 62(3), 147-153.

Abstract

The micromechanical and microtribological characteristics of the Ti–6Al–3Mo alloy surface obtained by milling, wire electrical discharge machining (WEDM) at different technological parameters and finishing chemical polishing were evaluated. After WEDM, a structure, prone to brittle fracture, is formed in the surface layer of the alloy. Tribological processes are localized within this layer. Chemical polishing contributes to the removal of the defect layer and a significant increase in the surface resistance to deformation. During friction, an adhesive wear mechanism is implemented. The friction coefficient oscillation increases in 5–6 times.

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