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    WANG Zhi-fen, WU Li-xin, SUN Yi-qiang, HAN Rong-dong. Structure and Formation Mechanism of Rust Scales on 09CuPCrNi Weathering Steel in Wet-dry Cyclic Corrosion[J]. Corrosion & Protection, 2012, 33(2): 110-114.
    Citation: WANG Zhi-fen, WU Li-xin, SUN Yi-qiang, HAN Rong-dong. Structure and Formation Mechanism of Rust Scales on 09CuPCrNi Weathering Steel in Wet-dry Cyclic Corrosion[J]. Corrosion & Protection, 2012, 33(2): 110-114.

    Structure and Formation Mechanism of Rust Scales on 09CuPCrNi Weathering Steel in Wet-dry Cyclic Corrosion

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    • Received Date: April 05, 2011
    • The rust scales on 09CuPCrNi weathering steel after accelerated wet-dry cyclic corrosion tests were investigated in order to realize the mechanism of the formed rusts. The rust scales were composed of a dense inner layer and a loose outer layer. The inner layer grew thicker and denser with the test period increasing. Large amount of γ-Fe2O3 was detected in the inner layer, which might be the reason resulting in much denser inner layer. Easy formation of γ-Fe2O3 may be attributed to the alloying elements of copper, chromium and phosphorus enriched in the inner layer.
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