Exploring the effect of the pH on the corrosion of multilayer nickel-chromium coatings
Source abstract
Abstract
The impact of the pH on the corrosion of microporous nickel-chromium coatings has been explored at localised scale by Scanning Electrochemical Microscopy and validated by potentiodynamic polarisation measurements. Results not only reveal the correlation between both techniques but also enables to identify the different corrosion rate after increasing the electrolyte aggressiveness varying the pH. However, independently of the pH, a similar corrosion mechanism was determined: the cross-section micrographs (by Field Emission-Scanning Electron Microscope) have revealed an isotropic growth of the actives sites at early-stage corrosion as well as the attack of different nickel layers during the corrosion propagation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Decoration with metallic luster
2. A review of solid-state lighting and its impact on the marketing and production of decorative coatings10.1007/s11998-015-9704-1 ↗
3. R. Constantin, P.-A. Steinmann, C. Manasterski, Decorative PVD coatings, in: Nanomater. Surf. Eng., ISTE Ltd., 2010, pp. 109–161.10.1002/9781118618523.ch5 ↗
4. Modern formulations for decorative paints and coatings
5. Oscillatory passive active transition during the corrosion in nickel chromium layer systems10.1007/s10008-012-1949-3 ↗
6. Research and decorative coatings
7. J.K. Dennis, T.E. Such, Nickel and Chromium Plating, Butterworth and Co. Limited, 1993.10.1533/9781845698638 ↗
8. J.F. Vogt, R.J. Herbert, U.S. patent, 2,635,075, 1953.
9. An SKP and EIS study of microporous nickel-chromium coatings in copper containing electrolytes10.1016/j.electacta.2019.05.108 ↗
10. Corrosion mechanism of microporous nickel-chromium coatings: part I. Impact of cupric ions on nickel layers
11. Corrosion mechanism of microporous nickel-chromium coatings: part II. SECM study monitoring Cu2+ and oxygen reduction
12. Unravelling the Fe effect on the corrosion of chromium coatings: chemical composition and semiconducting properties10.1149/1945-7111/ac3ac0 ↗
13. ASTM B 368 – 97, Standard Test Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing (CASS Test) 1, Annu. B. ASTM Stand. i (2011) 1–5. doi:10.1520/B0368-09.2.
14. Decorative chromium plating basics10.1016/S0026-0576(13)70110-7 ↗
15. Methods to Improve the corrosion performance of microporous nickel deposits
16. Electrodeposition of nickel10.1002/9780470602638.ch3 ↗
17. Influence of the Cu content on the electrochemical corrosion performances of Ni60 coating10.1016/j.corsci.2022.110408 ↗
18. Improved potentiometric SECM imaging of galvanic corrosion reactions10.1016/j.corsci.2017.10.006 ↗
19. Novel dual microelectrode probe for the simultaneous visualization of local Zn2+ and pH distributions in galvanic corrosion processes10.1016/j.corsci.2016.10.014 ↗
20. SECM study of the pH distribution over Cu samples treated with 2-mercaptobenzothiazole in NaCl solution10.1016/j.elecom.2017.04.005 ↗
21. Galvanic coupling between copper and aluminium in a thin-layer cell10.1016/j.corsci.2009.11.023 ↗
22. SVET and SECM imaging of cathodic protection of aluminium by a Mg-rich coating10.1016/j.corsci.2007.03.045 ↗
23. Use of SVET and SECM to study the galvanic corrosion of an iron–zinc cell10.1016/j.corsci.2006.04.021 ↗
24. Scanning electrochemical microscopy. apparatus and two-dimensional scans of conductive and insulating substrates10.1021/ac00192a003 ↗
25. Electrochemical polarization10.1149/1.2428653 ↗
26. L. Ganborena, Novel insights into the corrosion mechanism of decorative multilayer nickel-chromium coatings on ABS: towards a correlation between CASS and electrochemical tests, UPV, 2020.
27. Electrochemistry of high concentration copper chloride complexes10.1021/ac4016769 ↗
28. Research and development techniques 1: potentiodynamic studies of copper metal deposition10.1080/00202967.2003.11871523 ↗
29. Simulated and measured response of oxygen SECM-measurements in presence of a corrosion process10.1016/j.electacta.2014.09.010 ↗
30. Investigations into the performance of multi-layer nickel coatings in both CASS and exhaust gas corrosion testing
31. The electrochemical behavior of decorative nickel-chromium coatings in 3% NaCl under porentiostaric conditions10.1149/1.2412304 ↗
32. The corrosion of decorative nickel + chromium coatings: a metallographic and potential study10.1080/00202967.1961.11869817 ↗
33. Pitting corrosion of metals10.1149/1.1838615 ↗
34. Methods to Improve the corrosion performance of microporous nickel deposits
35. The electrochemical reduction of oxygen on zinc corrosion films in alkaline solutions10.1016/j.electacta.2007.11.056 ↗
36. A polarographic method for the indirect determination of polarization curves for oxygen reduction on various metals I. Description of the metho-case of platinum10.1149/1.2777992 ↗
37. J. Bard, A.J. Parsons, R. Jordan, Standard Potentials in Aqueous Solutions, New York, 1985.
38. G.A. Di Bari, Electrodeposition of nickel, in: Mod. Electroplat., fifth ed., 2010, pp. 79–114. doi:10.1002/9780470602638.ch3.10.1002/9780470602638.ch3 ↗