| Issue |
MATEC Web Conf.
Volume 188, 2018
5th International Conference of Engineering Against Failure (ICEAF-V 2018)
|
|
|---|---|---|
| Article Number | 03011 | |
| Number of page(s) | 8 | |
| Section | Metallic Materials II: Damage Accumulation, Structural Integrity, Advanced Manufacturing Techniques | |
| DOI | https://doi.org/10.1051/matecconf/201818803011 | |
| Published online | 07 August 2018 | |
The footprint of surface modification treatments on the corrosion-fatigue of AA7075-T651
1
Physical metallurgy Laboratory, Dept. of Mechanical Engineering, School of Engineering, Aristotle University of Thessaloniki,
54124
Thessaloniki,
Greece
2
Center for Research & Development on Advanced Materials – CERDAM,
57001
Thermi-Thessaloniki,
Greece
3
National Corrosion and Materials Reliability Center, Texas A&M University,
College Station,
TX
77843-3003,
USA
* Corresponding author: fstergio@auth.gr
Different manufacturing and surface modification treatments distinctively affect the surface characteristics and microstructure of the workpiece, having a different impact on their effective life-span. The corrosion-fatigue behavior of as-machined (wire-EDM), blasted and anodized aluminum alloy 7075-T651 was investigated using 3.5wt% NaCl aqueous solution and distilled water as corrosive media. An in-situ corrosion-fatigue device capable of producing cyclic loads in a corrosive solution was employed, coupled with FEM analysis. Blasting process offered a prolongation of the corrosion-fatigue life-span in both corrosive media, when compared to the as-machined samples under identical conditions. Anodizing had a deleterious effect in all the examined cases.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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