<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The special attention has been paid to the influence of misorientation angle of a random grain boundary (GB) on susceptibility to intergranular attack. The detailed observations of the microstructure of the intergranular corrosion (IGC) in 2024-T3 aluminium alloy (AA2024-T3) subjected to galvanic corrosion tests in two different solutions containing chloride ions (0.1 M and 0.5 M NaCl) were carried out using Scanning Electron Microscopy (SEM). The Electron Backscattered Diffraction (EBSD) technique was used to determine the grain boundary character distribution (GBCD) in the initial sample and a GBCD of corroded grain boundaries on a sample subjected to the corrosion test. The results are discussed in terms of the influence of the misorientation angle on the susceptibility of the grain boundaries to corrosion.</p></abstract>

The special attention has been paid to the influence of misorientation angle of a random grain boundary (GB) on susceptibility to intergranular attack. The detailed observations of the microstructure of the intergranular corrosion (IGC) in 2024-T3 aluminium alloy (AA2024-T3) subjected to galvanic corrosion tests in two different solutions containing chloride ions (0.1 M and 0.5 M NaCl) were carried out using Scanning Electron Microscopy (SEM). The Electron Backscattered Diffraction (EBSD) technique was used to determine the grain boundary character distribution (GBCD) in the initial sample and a GBCD of corroded grain boundaries on a sample subjected to the corrosion test. The results are discussed in terms of the influence of the misorientation angle on the susceptibility of the grain boundaries to corrosion.

Influence of grain boundaries misorientation angle on intergranular corrosion in 2024-T3 aluminium

Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507, Warsaw, Poland

Materials Engineers Group, Woloska 141, 02-507, Warsaw, Poland

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The special attention has been paid to the influence of misorientation angle of a random grain boundary (GB) on susceptibility to intergranular attack. The...

Influence of grain boundaries misorientation angle on intergranular corrosion in 2024-T3 aluminium

Publié en ligne: 08 mai 2012

Pages: 305 - 311

DOI: https://doi.org/10.2478/s13536-011-0050-4

Mots clés
EBSD 2024, intergranular corrosion, grain boundaries

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of grain boundaries misorientation angle on intergranular corrosion in 2024-T3 aluminium

Publié en ligne: 08 mai 2012

Pages: 305 - 311

DOI: https://doi.org/10.2478/s13536-011-0050-4

Mots clésEBSD 2024, intergranular corrosion, grain boundaries

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
EBSD 2024, intergranular corrosion, grain boundaries