A combined electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS) approach showed that the corrosion behaviour of 5083 Al alloy was controlled by Mg dissolution at the Mg-rich intermetallic coarse particles (IMCs) that were defects of the passive film. It was thus shown that microstructures with high amount of Mg-rich IMCs were less resistant to corrosion. EIS experimental data were well superimposed with fitted ones calculated using a model proposed in the literature for pure magnesium. The model allowed to plot the resistivity profiles of the passive films, which highlighted their double-layer structure evidenced by XPS.
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Univ Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, EnglandUniv Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, England
Bakare, M. S.
Voisey, K. T.
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Univ Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, EnglandUniv Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, England
Voisey, K. T.
Roe, M. J.
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Univ Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, EnglandUniv Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, England
Roe, M. J.
McCartney, D. G.
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Univ Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, EnglandUniv Nottingham, Fac Engn, Mat Mech & Struct Res Div, Nottingham NG7 2RD, England
机构:
Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Wang, S. G.
Huang, Y. J.
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Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Huang, Y. J.
Han, H. B.
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Shanxi Agr Univ, Coll Informat, Taigu 030800, Shanxi, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Han, H. B.
Sun, M.
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Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Sun, M.
Long, K.
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Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Long, K.
Zhang, Z. D.
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Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R ChinaShenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China