Investigation of High Power Impulse Magnetron Sputtering deposited nanoscale CrN/NbN multilayer coating for tribocorrosion resistance

PURANDARE, Yashodhan, ROBINSON, G.L., EHIASARIAN, A.P. and HOVSEPIAN, P. Eh (2020). Investigation of High Power Impulse Magnetron Sputtering deposited nanoscale CrN/NbN multilayer coating for tribocorrosion resistance. Wear, p. 203312.

[img] PDF
Sliding wear-corrosion resit of CrN-NbN coating.pdf - Accepted Version
Restricted to Repository staff only until 25 April 2021.
Creative Commons Attribution Non-commercial No Derivatives.

Download (2MB)
Official URL: https://www.sciencedirect.com/science/article/abs/...
Link to published version:: https://doi.org/10.1016/j.wear.2020.203312
Related URLs:

    Abstract

    Recycling equipment (waste/sea water/chemicals) need high tribocorrosion resistance. In this work High Power Impulse Magnetron Sputtering technique deposited nanoscale CrN/NbN multilayer coating for tribocorrosion resistance is explored. Sliding-wear experiments were conducted on CrN/NbN coated High Speed Steel (HSS) test coupons with an alumina (Al2O3) ball as a counterpart in a corrosive environment (3.5% NaCl solution) under potentiodynamic and potentiostatic conditions. Results reveal that coated substrates exhibited (by a factor of 3) lower corrosion currents and high tribo-corrosion resistance (Kc = 2 × 10−15 m3N−1m−1) as compared to uncoated HSS specimens. The alumina counterpart exhibited negligible wear in all the tests. Superior adhesion and dense microstructure consisting of flat and well-defined hard nitride nanolayers leads to stable friction coefficients and retain the unique nanoscale layer-by-layer wear mechanism without delamination. Effect of corrosion on friction coefficients, wear mechanisms and vice versa has been presented.

    Item Type: Article
    Uncontrolled Keywords: 0910 Manufacturing Engineering; 0912 Materials Engineering; 0913 Mechanical Engineering; Mechanical Engineering & Transports
    Identification Number: https://doi.org/10.1016/j.wear.2020.203312
    Page Range: p. 203312
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 29 Apr 2020 12:10
    Last Modified: 24 Jun 2020 12:10
    URI: http://shura.shu.ac.uk/id/eprint/26187

    Actions (login required)

    View Item View Item

    Downloads

    Downloads per month over past year

    View more statistics