Laser Cladding Of Carbon Steel With A Ceramic/Metallic Composite

K. Mohammed Jasim; D. R. F. West

doi:10.1117/12.961586

26 October 1989 Laser Cladding Of Carbon Steel With A Ceramic/Metallic Composite

K. Mohammed Jasim, D. R. F. West

Proceedings Volume 1132, High Power Lasers and Laser Machining Technology; (1989) https://doi.org/10.1117/12.961586
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

K. Mohammed Jasim and D. R. F. West "Laser Cladding Of Carbon Steel With A Ceramic/Metallic Composite", Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); https://doi.org/10.1117/12.961586

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