Synthesis, characterization and tribological behavior of electrodeposited nanostructured Co–23 wt.% Sn coatings

Nowadays thin layers are extensively applied in a variety of technological and industrial applications, which can range from microelectronics up to transportation field. In these diverse applications, thin layers should operate under different tribological contact conditions. In this work, nanostruc...

Full description

Saved in:
Bibliographic Details
Published in:Wear 2019-07, Vol.430-431, p.290-298
Main Authors: Georgiou, E.P., Kwee, I.S.K., Van der Donck, T., Drees, D., Celis, J.-P.
Format: Article
Language:English
Subjects:
Aluminum oxide
Automobile industry
Automotive engineering
Coated electrodes
Contact pressure
Electrocoatings
Friction and wear
Heat treatment
Industrial applications
Meso- macro-load scales
Nanostructure
Nanostructured electrodeposited coatings
Thin films
Tin base alloys
Tribology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nowadays thin layers are extensively applied in a variety of technological and industrial applications, which can range from microelectronics up to transportation field. In these diverse applications, thin layers should operate under different tribological contact conditions. In this work, nanostructured Co– 23 wt.% Sn alloy electrocoatings were developed as replacements to hard chrome. However, in order to explore the potential applicability of this newly developed material, a study of the structure, mechanical and tribological properties should be performed. In addition, their tribological behavior should be studied under a wide range of contact conditions to simulate meso-load (e.g. met in MEMs and watch industry) and macro-load (e.g. met in automotive industry) contacts, as friction and wear are load dependent. For this reason, reciprocating sliding tests against an inert alumina countermaterial were performed in the mN (Hertzian contact pressure 250-560 MPa) and N (Hertzian contact pressure 470-650 MPa) load range. The aim is to illustrate that despite having similar contact pressures, different tribological phenomena can occur in these scales. Furthermore, the effect of post heat treatment was also investigated, since electrodeposition is a non-equilibrium process and structural changes might occur during heating-up. •Electrodeposition of nanostructured Co–Sn coatings.•Effect of heat treatment on structure and surface properties of Co–Sn coatings.•Friction and wear behavior of Co–Sn coatings at different load scales.
ISSN:0043-1648
1873-2577
DOI:10.1016/j.wear.2019.05.022