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  • Influence of selenium on the internal oxidation of Fe-Si-Al-C alloy
    Steiner Petrovič, Darja
    The effect of selenium on the oxidation of Fe-Si-Al-C alloy during decarburization at 840 [compositum]C in wet hydrogen was studied. Selenium wasfound to change the morphology of internal oxides of ... an Fe-Si-Al-C alloy. The long penetrating internal oxides of Si and Al in the alloy containing 0.034 at.% Se demonstrate an obvious preferential growth perpendicular to the steel substrate. FEG-SEM/EDX was performed to analyze the scale and the subscale. It was assumed that columnar morphology of internal oxides could be induced by selenium surface segregation. Therefore, in-situ AES analysis using a resistive heating of specimen in UHV was used to obtain more accurate data on temperature dependence of selenium surface segregation in silicon steel. Additionally, the kinetics of the selenium surface segregation was investigated in-situ during annealing at 840 [compositum]C in the ultra-high vacuum chamber of a field-emission Auger electron spectrometer.
    Source: ISIJ international. - ISSN 0915-1559 (Vol. 51, no. 9, 2011, str. 1539-1544)
    Type of material - article, component part
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 878506

source: ISIJ international. - ISSN 0915-1559 (Vol. 51, no. 9, 2011, str. 1539-1544)
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