Gibbons, Gregory John and Hansell, Robert George. (2008) Thermal-sprayed coatings on aluminium for mould tool protection and upgrade. Journal of Materials Processing Technology, Vol.204 (No.1-3). pp. 184-191. ISSN 0924-0136

Full text not available from this repository.

Abstract

The aim of the research outlined in this paper was to evaluate a range of thermal spray processes High Velocity Oxy Fuel (HVOF) and Atmospheric Plasma Spraying (APS) for the deposition of coatings for the protection and upgrade of aluminium injection mould tooling, particularly for the low-cost and flexible manufacture of automotive components. A rigourous evaluation of coating properties pertinent to the application, including as-sprayed surface finish, hardness, adhesion to substrate and microstructure, and the effect of the coating process on the fatigue properties of a range of typical aluminium alloys was made. The JP5000 (HVOF) system, on the whole, was found to offer the smoothest, hardest, best bonded coatings with the lowest porosity and most homogeneous microstructure, and has the potential to satisfy the requirements for an easily applied, cost effective hard coating, applicable to a range of aluminium alloys. The properties of coatings deposited via APS were not suitable for this application, as they were in general poorly adhered to the substrate, with poor microstructure. There was no correlation identified between the coating adhesion and the substrate material, and, furthermore, the processing by HVOF was not found to be detrimental to the fatigue life of the aluminium substrate. (c) 2007 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	T Technology T Technology > TS Manufactures T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH):	Metal spraying, Coatings, Molding (Founding), Rapid tooling
Journal or Publication Title:	Journal of Materials Processing Technology
Publisher:	Elsevier SA
ISSN:	0924-0136
Date:	11 August 2008
Volume:	Vol.204
Number:	No.1-3
Number of Pages:	8
Page Range:	pp. 184-191
Identification Number:	10.1016/j.jmatprotec.2007.11.032
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC)
References:	Arai, T., Hallum, D.L., 1995. Coating greatly expands tool life. Am. Mach. 139 (11), 37–39. Bach, Fr-W., Henne, R., Landes, K., Lugscheider, E., Prehm, J., Hartz, K., Ernst, F., Zimmermann, S., Arnold, J., Muller, M., Schiller, G., Kavka, T., 2004. Diagnostics for thermal coating processes—research results of the DFG-founded project group. In: Source: Proceedings of the International Thermal Spray Conference, Osaka, Japan, pp. 980–987. Bailey, J.C., 1981. Eng. Des. 21. Dingremont, N., Bergman, E., Hans, M., Collignon, P., 1995. Application of duplex coatings for metal injection moulding. Surf. Coat. Technol. 72 (3), 157–162. Hawley, D., 2006. A promising new tool for thermal spraying. Weld. Cutting 5 (1), 38–43. Hitzek, R., Buergler, P., Rohr, L., Siegmann, S., Hadad, M., 2007. Wear performance of sandwich structured WC–Co–Cr thermally sprayed coatings using different intermediate layers. Wear 263 (1–6), 691–699. Lugscheider, E., Eschnauer, H., Mueller, U., Weber, Th., 1991. Quo vadis, thermal spray technology? Powder Metall. Int. 23 (1), 33–39. Morimoto, J., Sasaki, Y., Fukuhara, S., Abe, N., Tukamoto, M., 2006. Surface modification of Cr3C2–NiCr cermet coatings by direct diode laser. Vacuum 80 (11/12), 400–1405. Navinsek, B., Panjan, P., Krusic, J., 1998. Hard coatings on soft metallic substrates. Surf. Coat. Technol. 98 (1–3), 809–815. Plumb, S.A., Smith, C.G., Smith, J.D., 1999. Nitrotec S, an environmentally friendly alternative to hard chromium plating. Trans. Inst. Metal Finish. 77 (1), B12–B16. Schmid, R.K., Zimmermann, H., McCollough, R., Warnecke, C., 2004. New HVOF Developments at Sulzer Metco Sulzer. Tech. Rev. 86 (1), 4–7. Smith, R.W., Novak, R., 1991. Advances and applications in U.S. thermal spray technologys I. Technol. Mater. Powder Metall. Int. 23 (3), 147–155. Turunen, E., 2006. Diagnostic Tools for HVOF Process Optimisation, vol. 583. VTT Publications, pp. 1–66.
URI:	http://wrap.warwick.ac.uk/id/eprint/29713

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item