Tribo-corrosion protection of valves and rotors using cermet layers applied with HVOF

Fernández, D.; Verdeja, Luis Felipe; Quintana, María José; Gonzalez-Ojeda, Roberto

doi:10.1134/S2070205117020198

Tribo-corrosion protection of valves and rotors using cermet layers applied with HVOF

Journal

Protection of Metals and Physical Chemistry of Surfaces

ISSN

2070-2051

2070-206X

Date Issued

2017

Author(s)

Fernández, D.

Verdeja, Luis Felipe

Quintana, María José

Facultad de Ingeniería - CampCM

Gonzalez-Ojeda, Roberto

Facultad de Ingeniería - CampCM

Type

text::journal::journal article

DOI

10.1134/S2070205117020198

URL

https://scripta.up.edu.mx/handle/20.500.12552/4408

Abstract

Protection of conventional steel parts in equipment that must withstand wear of the tribo-corrosion type (combination of heat and an aqueous medium) can be achieved by High Velocity Oxy-Fuel (HVOF) techniques, applying carbide-based cermet layers which decrease tribological and corrosion mechanisms. Three different carbide layers were applied to a ferritic-pearlitic steel in order to characterize properties such as sliding friction coefficient, phase identification, adhesion to the substrate, porosity, layer thickness and wear mechanisms. An example of a real rotatory equipment after a working campaign, both with and without protective layer is presented. The capacity of the protective layer to extend the life of parts like the one analyzed is evident even if zones of the layer are detached during the campaign. © 2017, Pleiades Publishing, Ltd.