Alternative tribological coatings to electrodeposited hard chromium: a critical review
Alternative tribological coatings to electrodeposited hard chromium: a critical review
The traditional importance of hard chromium electroplating in surface engineering is recognised and the key features of this well-established technology are summarised. Despite the high hardness, corrosion protection and wear resistance of chromium electrodeposits, a number of alternative coating compositions and application techniques have been developed for specific applications in tribology. Environmental challenges associated with hard chromium electroplating are highlighted and the need to develop and evaluate alternative coatings is stressed. Key examples of the alternative coatings are described, including their method of application, microstructure and tribological performance in controlled service environments. Research needs requiring rapid development are highlighted. A summary is given of the most competitive coatings and those having the potential to match the performance of hard chromium in selected applications are identified.
Alloys, Electroless deposition, electroplating, Engineering coating, Tribology
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Ma, Chao
98b1a76f-532e-4c2a-b7ad-eda30409dd6b
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Ma, Chao
98b1a76f-532e-4c2a-b7ad-eda30409dd6b
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Wang, Shuncai, Ma, Chao and Walsh, Frank
(2020)
Alternative tribological coatings to electrodeposited hard chromium: a critical review.
Transactions of the Institute of Metal Finishing, 98 (4), [YTIM 1776962].
(doi:10.1080/00202967.2020.1776962).
Abstract
The traditional importance of hard chromium electroplating in surface engineering is recognised and the key features of this well-established technology are summarised. Despite the high hardness, corrosion protection and wear resistance of chromium electrodeposits, a number of alternative coating compositions and application techniques have been developed for specific applications in tribology. Environmental challenges associated with hard chromium electroplating are highlighted and the need to develop and evaluate alternative coatings is stressed. Key examples of the alternative coatings are described, including their method of application, microstructure and tribological performance in controlled service environments. Research needs requiring rapid development are highlighted. A summary is given of the most competitive coatings and those having the potential to match the performance of hard chromium in selected applications are identified.
Text
Cr Replacement Deposits Script2
- Accepted Manuscript
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Accepted/In Press date: 16 March 2020
e-pub ahead of print date: 17 July 2020
Keywords:
Alloys, Electroless deposition, electroplating, Engineering coating, Tribology
Identifiers
Local EPrints ID: 441925
URI: http://eprints.soton.ac.uk/id/eprint/441925
ISSN: 0020-2967
PURE UUID: dd2720e8-b447-4de9-a8ed-e24eb4d0e3bf
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Date deposited: 02 Jul 2020 16:34
Last modified: 17 Mar 2024 05:38
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Author:
Chao Ma
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