Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41704

Title

Cold spray processing of titanium powder

Author(s)

Karthikeyan, Jeganathan;  Kay, Charles M.;  Lindemann, J.;  Lima, P. S.;  Berndt, Christopher C.

Abstract

Oxygen-free titanium coatings are at present produced using vacuum plasma spray systems. The cold spray process can produce titanium coatings in atmospheric air at reduced cost. Variations of the deposition efficiency as well as the coating characteristics with various process parameters were studied. Results show that the deposition efficiency drops drastically below a critical temperature. The parameters which affect the jet velocity; viz., the type of gas and the nozzle geometry have maximum effect on the process deposition efficiency. Sprayed coatings were porous and exhibited a low modulus and high hardness. Post processing of the coating by machining produced dense, strong and hard coatings.

Publication type

Conference paper

Source

Proceedings of the 1st International Thermal Spray Conference, 'Thermal spray surface engineering via applied research', Montreal, Quebec, Canada, 09-11 May 2000 / Christopher C. Berndt (ed.), pp. 255-262

Publication year

2000

Keyword(s)

Adhesion;  Cold spray processing;  Compressive stress;  Elastic moduli;  Flame spraying;  Hardness;  Kinetic energy;  Machining;  Morphology;  Oxidation;  Plasma spraying;  Porosity;  Powder metals;  Powder particles;  Sprayed coatings;  Thermal cycling;  Titanium

Publisher

ASM International

ISBN

9780871706805, 0871706806

Peer reviewed