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    • DEP63 - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/23551

    Título
    Characterization of porous nickel-free austenitic stainless steel prepared by mechanical alloying
    Autor
    García Cabezón, Ana Cristinauntranslated
    Blanco Val, María Yolandauntranslated
    Rodríguez Méndez, María Luzuntranslated
    Martín Pedrosa, Fernandountranslated
    Año del Documento
    2017
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Alloys and Compounds, 2017, vol. 716, p. 46-55
    Abstract
    Nickel-free austenitic powder metallurgy stainless steels were prepared and characterized. The main issue was to obtain potential biocompatible materials. Mechanical alloying in a nitrogen atmosphere was used to obtain these powders. The main factor to be controlled was the milling time. Powder metallurgy was the technique to obtain massive samples from alloyed powders. Two sintering processes were applied by controlling the sinter-cooling rate (furnace and water-cooling). The sintering atmosphere applied was nitrogen because of its gammagenic effect. Samples made of powders milled for 48 h, sintered in nitrogen and water-cooled showed a clean austenitic microstructure, which is a suitable microstructure for biological applications. A complete microstructural characterization, including optical metallography, image analysis, Scanning Electron Microscopy with X-ray microanalysis, X-Ray diffraction and Vickers hardness and microhardness, was carried out. The electrochemical behaviour in a simulated body fluid, phosphate buffered saline, was also studied. The biocorrosion behaviour was evaluated in terms of anodic polarization measurements.
    Palabras Clave
    Metals and alloys
    Powder metallurgy
    Mechanical alloying
    Corrosion
    Microstructure
    Metallography
    Revisión por pares
    SI
    DOI
    10.1016/j.jallcom.2017.05.045
    Propietario de los Derechos
    Elsevier B.V.
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/23551
    Derechos
    embargoedAccess
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    • DEP63 - Artículos de revista [175]
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