Process Parameter Impact on Microstructure of Laser Clad Inconel-Chromium Carbide Layers

Abstract:

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Chromium carbide based metal matrix composite (MMC) coatings are ideally suited for high temperature erosive-corrosive applications. Laser cladding of such MMCs, with Inconel as the ductile matrix instead of the usual NiCr alloy, has been attempted in the present study. The relative hardness of the laser clad layers was observed to drop with increase in laser power. The reduction in hardness was attributed to retention of lower amounts of chromium carbides in the clad layer at higher laser powers. Use of chemically assisted scans with electron diffraction allowed extraction of effective micro-textural information on the coatings

Info:

Periodical:

Materials Science Forum (Volumes 702-703)

Edited by:

Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar

Pages:

963-966

DOI:

10.4028/www.scientific.net/MSF.702-703.963

Citation:

L. Venkatesh et al., "Process Parameter Impact on Microstructure of Laser Clad Inconel-Chromium Carbide Layers", Materials Science Forum, Vols. 702-703, pp. 963-966, 2012

Online since:

December 2011

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$35.00

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