Influence of the Nb/Ti Ratio on the Tribocorrosion Behavior of Fe–Cr–Mo–Nb–Ti Multicomponent Alloys Produced by Vacuum Melting

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:30:03Z
Fecha de publicación2026-01-01
ResumenTribocorrosion is one of the main degradation mechanisms affecting metallic components exposed simultaneously to mechanical wear and electrochemical corrosion. In this work, the influence of the Nb/Ti ratio on the tribocorrosion behavior of Fe–Cr–Mo–Nb–Ti multicomponent alloys produced by vacuum arc melting was investigated. The alloys were designed through systematic variations in the relative contents of niobium and titanium to assess their effect on electrochemical stability, wear resistance, and surface degradation. Electrochemical behavior was evaluated by potentiodynamic polarization in a 3.5 wt.% NaCl solution, while tribological and tribocorrosion tests were conducted using a ball-on-disk configuration under controlled conditions. Post-test surface analysis was performed using stereomicroscopy combined with digital image processing, enabling three-dimensional topographical reconstruction of the wear tracks and extraction of quantitative parameters including groove depth, pile-up height, wear track width, and surface roughness. The results demonstrate that the Nb/Ti ratio significantly influences both electrochemical and tribological responses. The alloy with the highest Nb/Ti ratio exhibited the best overall performance, showing the lowest corrosion current density (5.37 × 10−8 A/cm2) under static conditions and the lowest wear rate (1.32 mm3/mm2·year), together with the least severe surface degradation, characterized by a groove depth of approximately 7.8 µm and minimal pile-up formation. A progressive deterioration in performance was observed as the Nb/Ti ratio decreased, with the lowest-ratio compositions presenting higher wear severity and surface instability. The AISI 316L reference material exhibited intermediate performance across all evaluated parameters. Overall, increasing the Nb/Ti ratio enhances passive film stability, reduces plastic deformation, and mitigates material removal under tribocorrosion conditions. The incorporation of three-dimensional surface analysis provides a more robust evaluation of wear mechanisms, supporting the design of multicomponent alloys with improved resistance to combined mechanical and electrochemical degradation in aggressive environments.es_ES
Doihttps://doi.org/10.3390/cmd7020032es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/2008
Idiomaeses_ES
EditorialMDPI AGes_ES
RelaciónCorrosion and Materials Degradationes_ES
URL relacionadohttps://doi.org/10.3390/cmd7020032es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteCorrosion and Materials Degradation
TítuloInfluence of the Nb/Ti Ratio on the Tribocorrosion Behavior of Fe–Cr–Mo–Nb–Ti Multicomponent Alloys Produced by Vacuum Meltinges_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorAperador, Willian
AutorGonzález-Hernández, Andrés
AutorCaicedo, Julio C.
AutorBautista-Ruiz, Jorge
AutorOrozco-Hernández, Giovany
AutorAperador, Willianes_ES
AutorGonzález-Hernández, Andréses_ES
AutorCaicedo, Julio C.es_ES
AutorBautista-Ruiz, Jorgees_ES
AutorOrozco-Hernández, Giovanyes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número2es_ES
Rango de páginas32es_ES
URL relacionadahttps://doi.org/10.3390/cmd7020032
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen7es_ES

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