The slurry erosion behaviour of high velocity oxy-fuel (HVOF) sprayed aluminium bronze coatings
The slurry erosion behaviour of high velocity oxy-fuel (HVOF) sprayed aluminium bronze coatings
This paper investigates the erosion aspects of a novel high velocity oxy-fuel (HVOF) sprayed aluminium bronze coating under sand particle impingement conditions, using a free-jet impingement erosion rig. Erodents at various kinetic energies (0.1–0.8 ?J) and impingement angles (30, 60 and 90°) were used to simulate actual service conditions. Gravimetric measurements, surface profilometry and microscopy techniques were utilised to determine both the erosion rate and the mechanisms of coating failure. The erosion rate of the coating was found to be comparable to bulk 90/10 cupro-nickel (C70600) and about twice that of Marinel and AISI 316L stainless steel. These results suggest that HVOF aluminium bronze coatings are suitable candidates for marine applications. Analysis of the erosion scars suggest that coating erosion occurred by a combination of cutting wear, plastic deformation, and crack propagation at splat boundaries (brittle oxides) leading to the detachment of coating splats, cutting wear was found to be the most dominant. The cutting process was dominated by smaller particle impacts. The number of these particles which cause damage appears to be a function of kinetic energy.
Slurry erosion, HVOF coating, Aluminium bronze, Jet impingement, Erosion mechanisms
195-205
Tan, K.S.
54c01254-5cd1-4ab5-9f43-8724c24c2242
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Stokes, K.R.
5fb4e7f7-2f7e-4e6e-a045-6d7690626695
2003
Tan, K.S.
54c01254-5cd1-4ab5-9f43-8724c24c2242
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Stokes, K.R.
5fb4e7f7-2f7e-4e6e-a045-6d7690626695
Tan, K.S., Wood, R.J.K. and Stokes, K.R.
(2003)
The slurry erosion behaviour of high velocity oxy-fuel (HVOF) sprayed aluminium bronze coatings.
Wear, 255 (1-6), .
(doi:10.1016/S0043-1648(03)00088-7).
Abstract
This paper investigates the erosion aspects of a novel high velocity oxy-fuel (HVOF) sprayed aluminium bronze coating under sand particle impingement conditions, using a free-jet impingement erosion rig. Erodents at various kinetic energies (0.1–0.8 ?J) and impingement angles (30, 60 and 90°) were used to simulate actual service conditions. Gravimetric measurements, surface profilometry and microscopy techniques were utilised to determine both the erosion rate and the mechanisms of coating failure. The erosion rate of the coating was found to be comparable to bulk 90/10 cupro-nickel (C70600) and about twice that of Marinel and AISI 316L stainless steel. These results suggest that HVOF aluminium bronze coatings are suitable candidates for marine applications. Analysis of the erosion scars suggest that coating erosion occurred by a combination of cutting wear, plastic deformation, and crack propagation at splat boundaries (brittle oxides) leading to the detachment of coating splats, cutting wear was found to be the most dominant. The cutting process was dominated by smaller particle impacts. The number of these particles which cause damage appears to be a function of kinetic energy.
This record has no associated files available for download.
More information
Published date: 2003
Keywords:
Slurry erosion, HVOF coating, Aluminium bronze, Jet impingement, Erosion mechanisms
Identifiers
Local EPrints ID: 22441
URI: http://eprints.soton.ac.uk/id/eprint/22441
ISSN: 0043-1648
PURE UUID: 9e9f97bc-f37d-4e19-87a9-4bbb5a247f6c
Catalogue record
Date deposited: 21 Mar 2006
Last modified: 16 Mar 2024 02:46
Export record
Altmetrics
Contributors
Author:
K.S. Tan
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
