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Pin on disc wear investigation of nitrocarburised H13 tool steel

King, P. C., Reynoldson, R. W., Brownrigg, Allan and Long, John 2005, Pin on disc wear investigation of nitrocarburised H13 tool steel, Surface engineering, vol. 21, no. 2, pp. 99-106.

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Title Pin on disc wear investigation of nitrocarburised H13 tool steel
Author(s) King, P. C.
Reynoldson, R. W.
Brownrigg, Allan
Long, John
Journal name Surface engineering
Volume number 21
Issue number 2
Start page 99
End page 106
Publisher Maney Publishing
Place of publication London, England
Publication date 2005-04
ISSN 0267-0844
Keyword(s) pin on disc
wear testing
nitrocarburising
compound layer
H13
tool steel
oxidative wear
friction coefficient
fluidised bed
cover layer
Summary Nitrocarburised H13 disks were tested in dry, sliding wear against a stationary ruby ball (pin). Three different 4 h nitrocarburising treatments were compared, using N2/NH3/CO2, N2/NH3/natural gas and N2/NH3 gas mixtures, resulting in compound layers of varying thickness, hardness, porosity and oxide morphology. During mild, oxidative wear, with the formation of abrasive wear debris, the most brittle and oxidised surfaces performed poorly. Polishing to a bright, reflective finish greatly reduced wear. However, the N2/NH3/CO2 sample also frequently maintained a 'very mild' wear regime, owing to the formation of a protective film between the wear surfaces, and resulting in a lowering of the friction coefficient. This treated surface was porous and covered in a complex layer of coarse oxide+epsi-carbonitride. Nitrocarburised samples and wear tracks were characterised by optical microscopy, SEM, atomic force microscopy and stylus profilometry.
Language eng
Field of Research 090499 Chemical Engineering not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2005, Institute of Materials, Minerals and Mining
Persistent URL http://hdl.handle.net/10536/DRO/DU:30003088

Document type: Journal Article
Collections: School of Engineering and Technology
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