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Formation mechanism of biocompatible fluoride conversion coating on AZ31 magnesium alloy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU117240" target="_blank" >RIV/00216305:26310/15:PU117240 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Formation mechanism of biocompatible fluoride conversion coating on AZ31 magnesium alloy

  • Original language description

    Magnesium alloys are characterized by high strength to weight ratio and vibration absorbance, but the main disadvantage, limiting their usage in engineering and medical fields, is magnesium high corrosion rate. Several methods were developed to improve corrosion resistivity of magnesium alloys. This study focuses on improving corrosion resistance of AZ31 magnesium alloy for biomedical applications by conversion coating. Biocompatible fluoride conversion coating was prepared by immersion of AZ31 magnesium alloy in molten Na[BF4] salt kept at 693 K. Dependence of conversion coating growth on immersion time was evaluated, focusing on the coating thickness and compactness. Mechanism of fluoride conversion coating forming was studied in air-free atmosphere.The experiments were carried out to determine if the coating formation was controlled by diffusion or by chemical reaction of the magnesium alloy and the melt. Diffusion process seems to be controlling the coating formation. It was shown

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

    CA - Inorganic chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů