Abstract
A 0.4wt% C normalized carbon steel has been graphite-coated and irradiated in air with a cw-CO2 laser beam at 1.3 kJ cm−2 to melt a near-surface layer of material. The solidified and the solid-state transformed regions have been investigated by means of surface Mössbauer spectroscopy, X-ray diffraction, metallography and microhardness measurements. Nature and morphology of the phases have been determined in each region, and their origin discussed in relation to the conditions of the treatment.
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Carbucicchio, M., Meazza, G., Palombarini, G. et al. Surface melting of a medium carbon steel by laser treatment. J Mater Sci 18, 1543–1548 (1983). https://doi.org/10.1007/BF01111976
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DOI: https://doi.org/10.1007/BF01111976