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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6118

Title: Hard coatings based on thermal spray and laser cladding
Authors: KHANNA, AS
KUMARI, S
KANUNGO, S
GASSER, A
Issue Date: 2009
Publisher: ELSEVIER SCI LTD
Citation: INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 27(2), 485-491
Abstract: Thermal spray and laser cladding have been used to develop hard coatings. HVOF and laser glazing techniques were used to form hard and corrosion resistant coatings, using WC/Co, impregnated in Ni-Cr powder, to protect the heat exchanger tubes from fireside erosion and corrosion, while PM 20 alloy (chromium carbide in Ni-Cr powder), WC/Co in Ni-Cr powder were used to develop a very hard and friction resistant coatings for engine groves, using plasma spray and laser cladding techniques. Results indicate that an optimized composition (15-30% of WC/Co in NiCr matrix) was best to control the erosion and corrosion of heat exchanger tubes and PM 20 alloy, applied using laser cladding, gave excellent hardness and adequate wear and friction resistance. (C) 2008
URI: http://dx.doi.org/10.1016/j.ijrmhm.2008.09.017
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6118
http://hdl.handle.net/10054/6118
ISSN: 0263-4368
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