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  • Surface characterization and pickling characteristics of the oxide scale on duplex stainless steel = Površinska karakterizacija in lastnosti luženja oksidne plasti na dupleksnem nerjavnem jeklu
    Donik, Črtomir, 1980-
    Mixtures of hydrofluoric (HF[sub](aq)) and nitric acids (HNO[sub]3) used for the pickling of stainless steels to remove thick oxide scale generate waste liquids with a high HF concentration. The ... oxide formation during production annealing and the subsequent pickling response in mixed acids have been studied. A cost reduction and a procedure optimization can be achieved by the use of the proper concentration of mixed acids and a low pickling temperature. In this work, new mixtures of both with a high pickling efficiency for solutions designed for duplex stainless steel are checked. The experiments were carried with mixtures consisting of mass fractions 0.5-4.0 % HF[sub](aq) and 12.5-22.0 % HNO[sub]3 at room and elevated temperatures. The goal of the presented work was to determine the optimal pickling time with respect to the temperature and the acid mixture concentration.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 45, št. 4, jul.-avg. 2011, str. 329-333)
    Vrsta gradiva - članek, sestavni del
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 866218

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 45, št. 4, jul.-avg. 2011, str. 329-333)

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