Effect of anodization and loading on fatigue life of 2618-T851 aluminum alloy
Source abstract
Abstract
Anodizing process is largely performed onaluminum alloys to enhance corrosion and wearresistances. However, this process can significantlyreduce the fatigue resistance of aluminum alloysdepending on the alloy and the process parameters.This paper deals with the influence of anodizingprocess on fatigue resistance of the aeronauticalaluminum alloy 2618-T851. The anodic film has beencharacterized after each step using scanning electronmicroscopy (SEM). This analysis showed that theanodic layer was crazed just after impregnationoperation with micro-cracks extending from thesurface up to half the anodic layer. Simultaneously,uniaxial fatigue tests under tension or torsion loadingshave been conducted in order to evaluate the effect ofeach process step in relation with loading nature. Theresults showed that the anodizing step has a detrimentaleffect on fatigue life of 2618 alloy when specimensare subjected to tensile loading. However, anodizingprocess has no effect on fatigue life under torsionloading. Fractographic observations have been conductedin order to get an insight on the mechanismsinvolved in each case.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Advanced Welding Techniques Analysis · Anodic Oxide Films and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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