2017
DOI: 10.1111/ffe.12651
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Effect of environment's aggressiveness on the corrosion damage evolution and mechanical behavior of AA 2024‐T3

Abstract: The aim of this work is to contribute on establishing correlations between corrosion damage from accelerated laboratory corrosion tests of varying aggressiveness; by accounting for both, the metallographic features of corrosion damage and the mechanical properties of the corroded material. The work is based on the investigation of corrosion damage caused by the exposure of 2024‐T3 aluminum alloy to 3.5% NaCl solution, which is presently considered to properly represent in‐service exposure. Corrosion damage evo… Show more

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Cited by 7 publications
(3 citation statements)
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“…With distancing of the affected layer, and approaching the characteristics of the raw material, load carrying capacity is restored and the maximum depth of penetration decreases, leading to increased nanoindentation hardness values. However, the HEDE mechanism alone does not seem sufficient to explain all the effects of HE observed in previous works, such as the presence of a quasi-cleavage zone in tensile fracture surfaces or the decrease in strain of corroded specimens [2][3][4][5][6]21,23]. Most likely, a combination of different mechanisms is responsible for these results, with the need of more experimental observations to fully characterize the main acting mechanism.…”
Section: Experimental Tests and Findingsmentioning
confidence: 85%
See 1 more Smart Citation
“…With distancing of the affected layer, and approaching the characteristics of the raw material, load carrying capacity is restored and the maximum depth of penetration decreases, leading to increased nanoindentation hardness values. However, the HEDE mechanism alone does not seem sufficient to explain all the effects of HE observed in previous works, such as the presence of a quasi-cleavage zone in tensile fracture surfaces or the decrease in strain of corroded specimens [2][3][4][5][6]21,23]. Most likely, a combination of different mechanisms is responsible for these results, with the need of more experimental observations to fully characterize the main acting mechanism.…”
Section: Experimental Tests and Findingsmentioning
confidence: 85%
“…Only a few concepts were reported, aiming to directly correlate the metallographic features, which characterize corrosion damage of a material to the resulting degradation of its mechanical properties. Such a correlation is not an easy task, as the term "corrosion damage" is in the first place, a qualitative term, which needs to be first related to specific and measurable material features in order to be quantified and, in addition, the evolution of these features follows usually non-linear time functions [5][6][7]. In [8], a correlation between the metallographic features of corrosion damage developed on the magnesium alloy AZ31 and the mechanical properties of the corroded material has been made manageable by using artificial neural networks.…”
Section: Introductionmentioning
confidence: 99%
“…% NaCl solution, with pitting density, depth and shape evolving with exposure time. Vasco et al [32] performed correlations between corrosion damage from accelerated corrosion tests of varying aggressiveness by accounting for both, the metallographic features of corrosion damage and the mechanical properties of the corroded material. Correlations regarding geometrical metallographic features were found under dominance of pitting corrosion and up to 8 hours in EXCO solution; higher variations after the occurrence of pit coalescence and transition to dominance of exfoliation corrosion were presented.…”
Section: Introductionmentioning
confidence: 99%