Institute of Metals and Technology, Ljubljana (IMTLJ)
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Knjižnica IMT
  • Transmission electron microscopy based investigations of oxidation barrier in the internally oxidized Ag based alloys = Preiskave oksidacijske pregrade v notranje oksidiranih srebrovih zlitinah s pomočjo elektronske mikroskopije
    Bezjak, Jožica
    Internally oxidized Ag based alloys prone to passivation were investigated. Passivation was hindered with modification. Passivation phenomenon was successfully hindered and undisturbed growth of ... internal oxidation zone was obtained by the addition of 0.001 to 0.5 weight % microalloying elements with high free energy of oxide formation. Investigations with electron microscopy showed in-situ formation of oxide of microalloying element followed by the formation of oxide of second alloying element. Different amounts of Mg, Si, Ti, Al, Zr and Be were proved as the most successful microalloying elements to binary Ag-Zn alloy. Distribution and density of nuclei was determined. This is the base for correct selection of concentration interval of each individual microalloying element for successful modification. TEM analyses confirmed our hypothesis relating to structure, matrix and frequency of boundarie among matrix and oxide particles.
    Type of material - conference contribution
    Publish date - 2008
    Language - english, slovenian
    COBISS.SI-ID - 712362