Journal
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume 27, Issue 7, Pages 3268-3275Publisher
SPRINGER
DOI: 10.1007/s11665-018-3421-8
Keywords
aluminum alloy; abrasion resistance; hard anodizing; scratch test; Taber abrasion test
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Funding
- European Union under the European Regional Development Fund within the Innovative Economy Operational Program [UOD-DEM-1-557/001]
- Foundation for Polish Science within the START fellowship
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The aim of this work was to establish the influence of the thickness of the anodic coatings on their mechanical properties and to understand the relation between their hardness and the abrasion resistance. The coatings were produced in the hard anodizing process onto the 6061-T6 aluminum alloy. Their thickness was in the range between 19 and 43 A mu m. The abrasion resistance was determined by using Taber abrasion test. The weight losses of the coatings obtained were in the range between 15 and 11 mg and decreased with their increasing thickness. It has been shown that the hardness measured on the cross sections of the coatings did not correspond to their abrasion resistance. Thus, the new approach has been proposed. The hardness of the coatings was estimated on the basis of the results of the scratch test performed at the constant load. The results obtained correspond to the abrasion resistance of the coatings.
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