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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.
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Sliding wear-corrosion resit of CrN-NbN coating.pdf - Accepted Version Creative Commons Attribution Non-commercial No Derivatives. Download (2MB) | Preview |
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: | 25 Apr 2021 01:18 |
| URI: | https://shura.shu.ac.uk/id/eprint/26187 |
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