期刊
CORROSION SCIENCE
卷 61, 期 -, 页码 35-44出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.04.005
关键词
Alloy; Aluminium; TEM; Anodic dissolution; Intergranular corrosion; Pitting corrosion
资金
- UK - ESPRC LATEST2 Programme Grant
- CSIRO
- EPSRC [EP/H020047/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H020047/1] Funding Source: researchfish
Aluminium alloy 2024-T351 was examined using a range of electron microscope techniques at the early stages of attack after immersion in 0.1 M NaCl aqueous solution. At attack sites, a significant portion of the intergranular network was attacked, even though only 15% of the boundaries were decorated by second phase particles (theta-phase). Structure of the grains and the grain boundaries, including grain misorientation angle and grain stored energy, based on dislocation density, were probed further. A strong correlation of intergranular attack around grains with higher grain stored energy and therefore high dislocation density was revealed. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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