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Título: | Microstructure and corrosion behaviour of Ni-P laser surface alloys |
Autor: | García-Alonso, M. C. CSIC ORCID ; Escudero Rincón, María Lorenza; López, Víctor CSIC; Macías, Alba | Fecha de publicación: | 1996 | Editor: | Iron and Steel Institute of Japan | Citación: | ISIJ International 36: 172-178 (1996) | Resumen: | Two different coat thickness electroless Ni-P deposits on mild steel were laser treated at two different laser scanning rates. To generate a coated surface of various square centimeters, five laser tracks were realized overlapping 50% of each other. The Ni-P coated samples treated in this way were microstructurally characterized and its corrosion behaviour on 0.1 M Na2SO4 solution was determined. As a consequence of the laser interaction, a dendritic solidification microstructure was obtained for all the Ni-P coatings - initially amorphous - tested independently of its coat thickness or the laser treatment conditions. The low corrosion resistance of laser treated Ni-P coatings of 45 μm coat thickness makes them not suitable for technological applications. However, laser treatment of Ni-P coated samples with the maximum coat thickness tested (180 μm) enhances its corrosion resistance in the medium studied. | URI: | http://hdl.handle.net/10261/85284 | DOI: | 10.2355/isijinternational.36.172 | Identificadores: | doi: 10.2355/isijinternational.36.172 issn: 0915-1559 |
Aparece en las colecciones: | (CENIM) Artículos |
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