Materials and Corrosion

Cover image for Vol. 64 Issue 4

April 2013

Volume 64, Issue 4

Pages 271–362

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Articles
    5. Corrosion News
    6. Korrosionsnachrichten
    1. You have free access to this content
      Materials and Corrosion 4/2013

      Version of Record online: 12 APR 2013 | DOI: 10.1002/maco.201390012

      Cover:

      Sol-gel films of tetraethoxysilane (TEOS), phenyltriethoxysilane (PTES) and phenyltrimethoxysilane (PTMS) were prepared on aluminium and aluminium alloy AA7075 and characterized. The corrosion inhibition properties of uncoated and coated specimens were evaluated with potentiodynamic polarization scan, linear polarisation resistance and open circuit potential measurements. With scanning electron microscopy and optical microscopy effects of the sol-gel coating were shown. Weight loss measurements were performed at different pH-values. More hydrophobic coatings as PTMS show a considerably better corrosion inhibition capacity as compared to the capacity provided by less hydrophobic ones as TEOS and PTES. The pictures show samples of the alloy AA 7075 uncoated (top) and coated with PTMS (bottom) before (left) and after (right) immersion for aqueous solution of 0.05 mol/l NaCl for 24 days with obvious corrosion damage. The inset shows potentiodynamic curves for all alloy samples after immersion in an aqueous solution of 0.05 mol/l NaCl for 24 hr. Results obtained with all employed methods correlate well with the hydrophobicity of the coating with an efficiency growing according to PTMS < PTES < TEOS as visible at the corrosion potentials in the diagram.

      More detailed information can be found in: A. A. Younis, W. Ensinger, M. M. B. El-Sabbah, R. Holze; Corrosion protection of pure aluminium and aluminium alloy (AA7075) in salt solution with silane-based sol-gel coatings; Materials and Corrosion 2013, 64, 276.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Articles
    5. Corrosion News
    6. Korrosionsnachrichten
    1. Materials and Corrosion 4/2013 (pages 271–275)

      Version of Record online: 12 APR 2013 | DOI: 10.1002/maco.201390013

  3. Articles

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Articles
    5. Corrosion News
    6. Korrosionsnachrichten
    1. Fabrication of Zn[BOND]Ni/Ni[BOND]P compositionally modulated multilayer coatings (pages 335–340)

      J. H. Liu, J. L. Chen, Z. Liu, M. Yu and S. M. Li

      Version of Record online: 10 OCT 2011 | DOI: 10.1002/maco.201106140

    2. The structure and properties of electroless Ni–Mo–Cr–P coatings on copper alloy (pages 341–346)

      Z.-Y. Jin, P.-P. Li, B.-Z. Zheng and D. Xiao

      Version of Record online: 10 OCT 2011 | DOI: 10.1002/maco.201106289

    3. Copper corrosion inhibition by polyaspartic acid and imidazole (pages 347–352)

      H. P. Wang, Q. Wu, C. M. Li and N. Gu

      Version of Record online: 11 JAN 2012 | DOI: 10.1002/maco.201106261

  4. Corrosion News

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Articles
    5. Corrosion News
    6. Korrosionsnachrichten
    1. You have free access to this content
      Corrosion News (pages 353–362)

      Version of Record online: 12 APR 2013 | DOI: 10.1002/maco.201390014

  5. Korrosionsnachrichten

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Articles
    5. Corrosion News
    6. Korrosionsnachrichten
    1. You have free access to this content
      Korrosionsnachrichten

      Version of Record online: 12 APR 2013 | DOI: 10.1002/maco.201390015

SEARCH

SEARCH BY CITATION