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