Erosive wear behaviour of thick chemical vapour deposited diamond coatings

Wheeler, D.W.; Wood, R.J.K.

doi:10.1016/s0043-1648(98)00379-2

Cited by 47 publications

(23 citation statements)

References 25 publications

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“…Other coating processes, involving chemical vapour deposition (CVD) have been used to produce ultra-hard coatings such as diamond for pump components and mechanical seals [45][46][47].…”

Section: Tribo-corrosion Of Different Coating Typesmentioning

confidence: 99%

Tribo-corrosion of coatings: a review

Wood¹

2007

J. Phys. D: Appl. Phys.

225

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This paper reviews the available literature relating to the emerging research into the performance of coatings under combined wear and corrosion conditions. Understanding how coatings perform under these tribo-corrosion conditions is essential if the service life of equipment is to be predicted and to allow service life to be extended. Therefore, the tribo-corrosion performance of coatings deposited by a variety of techniques is discussed and the main mechanisms associated with their degradation under combined wear and corrosion highlighted. Coating composition, microstructure, defect level, adhesion, cohesion and substrate properties are seen as some of the critical elements in coating performance when subjected to tribo-corrosion contacts. The importance of post-coating deposition treatments such as laser resurfacing and sealing are also discussed. Interactions between wear and corrosion mechanisms are identified along with some models and mapping techniques that aim to inform coating selection and predict performance. Recent investigations into mono-layer as well as multilayered and functionally graded coatings are reviewed as candidates for wear-corrosion resistant surfaces. The review reveals the need for a more considered approach to tribo-corrosion testing and the way in which the results are analysed and presented. For example, the test conditions should be appropriate to the coating system under test; the level of in situ instrumentation deployed and the post-test analysis of in situ electrochemical data should be carefully selected as well as details given of the composition of any surface tribofilms formed and the identification of the degradation mechanisms.

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“…Other coating processes, involving chemical vapour deposition (CVD) have been used to produce ultra-hard coatings such as diamond for pump components and mechanical seals [45][46][47].…”

Section: Tribo-corrosion Of Different Coating Typesmentioning

confidence: 99%

Tribo-corrosion of coatings: a review

Wood¹

2007

J. Phys. D: Appl. Phys.

225

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“…The largest contribution in the field comes from Wheeler and Wood who have studied in detail the material removal mechanisms during high energy SPE of thick CVD diamond [81,[109][110][111][112][113][114][115][116][117][118][119][120]. interfacial (a) debonding [118] and (b) cracking [119].…”

Section: Spe Of Carbon-based Coatingsmentioning

confidence: 99%

“…In fact, it has been shown that brittle materials exhibit surface removal mechanisms very similar to those encountered during indentation [31]. In the case of large round particles, Hertzian cracks will form and can coalesce into deep wormhole-like craters [116,200], while for sharp particles, the damage can progress from plastic cutting or ploughing of the surface for low energies to radial/median cracking at higher energies and finally to lateral fracture removing significant amounts of matter [66,67,198]. In addition, it has been shown that the erodent particles can be crushed or fragmented upon impact when the hardness of the target (H t ) is greater than that of the particle (H p ) [12,31,76,77].…”

Section: Introductionmentioning

confidence: 97%

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Solid particle erosion mechanisms of protective coatings for aerospace applications

Bousser

Martinů

Klemberg-Sapieha

2014

Surface and Coatings Technology

130

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“…Research work on erosive wear by liquids is very rare [19][20][21][22][23][24][25] . Studies were concerned mostly with erosion by solid particles [26][27][28][29][30][31][32][33][34][35][36][37][38] . The erosion rate (ER) of a material depends on several factors, including target material properties, and erosion test conditions such as impinging angle, velocity, temperature, particle flux, and erodent [39] .…”

Section: Introductionmentioning

confidence: 99%

Aqueous Erosion of Polymeric Materials Used in Water Supply Systems

Zaamout¹

2006

eng

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Abstract. Elements of water supply systems such as pipes, elbows, tee connections, …etc., are made of polymeric materials. They are subjected to erosion by streams of water and contaminants. The objective of this work is to investigate the erosion resistance of the polymers that are locally used to produce such components. Three materials were examined, namely: High pressure PVC (HP-PVC), Low pressure PVC (LP-PVC), and Polypropylene (PP). Four types of water were used to erode the polymeric specimens: Distilled water (DiW), Desalinated water (DeW), Sea water (SW), and untreated deep ground (Well) water (WW). The effects of water stream velocity and eroding time on the erosion wear behaviour of the polymers were examined. The work was conducted under controlled environment of 23 °C temperature and 40% humidity. Results show that erosive wear of all materials increases with the increase in stream velocity and/or eroding time. It also indicates that at certain values of velocity and/or eroding time the increase in rate was more pronounced. In addition the presence of water contaminants has drastic effects on the erosion volume. Results also show that HP-PVC has the highest erosion resistance.Keywords: erosive wear of polymers; erosive wear in water supply systems. Mahmoud S. Zaamout 138

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Erosive wear behaviour of thick chemical vapour deposited diamond coatings

Cited by 47 publications

References 25 publications

Tribo-corrosion of coatings: a review

Tribo-corrosion of coatings: a review

Solid particle erosion mechanisms of protective coatings for aerospace applications

Aqueous Erosion of Polymeric Materials Used in Water Supply Systems

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