期刊
CORROSION SCIENCE
卷 76, 期 -, 页码 119-128出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.06.035
关键词
Aluminium; Polarisation; Weight loss; Pitting corrosion
资金
- China Scholarship Council
Specially prepared 6xxx series aluminium alloys (Al-Mg-Si) with different Mg/Si ratios and Cu contents were investigated in the naturally aged, under-aged, peak-aged and over-aged conditions. Potentiodynamic polarisation and immersion testing in 0.1 M NaCl were used to investigate the corrosion behaviour of such alloys in a general sense. Results reveal a significant dependence of the corrosion rate and morphology on the ageing conditions and solute content. Whilst contributing to broader understanding of 6xxx alloy corrosion, we note that corrosion rate is lowest in the naturally aged condition and is principally influenced by Cu and subsequently by the Mg/Si ratio. (C) 2013 Elsevier Ltd. All rights reserved.
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