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Proceedings Paper

Laser Cladding Of Carbon Steel With A Ceramic/Metallic Composite
Author(s): K. Mohammed Jasim; D. R. F. West
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Paper Abstract

An investigation has been made of laser cladding by feeding a mixture of fine powder of Zr02-8wt% Y203 and 316L austenitic stainless steel into a laser generated melt pool on a 0.2wt% carbon steel substrate. The effects of the powder feed rate, scanning speed and laser power are discussed. Microstructural studies and compositional analysis of single tracks have been made using optical microscopy and scanning electron microscopy with dispersive X-ray spectrometry (EDS). X-ray diffraction was used to investigate the phases present after laser cladding. The clad layer contained distinct regions of stainless steel and of ceramic. The austenitic stainless steel regions were free of cracks, while the yttria partially stabilized zirconia (YPSZ) regions showed some cracking particularly along the interface between the stainless steel and the ceramic. The stainless steel regions showed a high hardness, associated with a cellular/dendritic structure, corresponding to cooling rates in the range of 10 to 10K/s during solidification.

Paper Details

Date Published: 26 October 1989
PDF: 9 pages
Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); doi: 10.1117/12.961586
Show Author Affiliations
K. Mohammed Jasim, Scientific Research Council (Iraq)
D. R. F. West, Imperial College (U.K.)

Published in SPIE Proceedings Vol. 1132:
High Power Lasers and Laser Machining Technology
Michel Gaillard; A. Quenzer, Editor(s)

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