HARD ANODIC OXIDATION OF A356 ALUMINUM ALLOY

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The International Journal of Materials and Engineering Technology
Volume:4 Issue:1
HARD ANODIC OXIDATION OF A356 ALUMINUM ALLOY

HARD ANODIC OXIDATION OF A356 ALUMINUM ALLOY

Authors : Aziz Barış BAŞYİĞİT, Halil KURT

Pages : 44-50

View : 45 | Download : 14

Publication Date : 2021-06-30

Article Type : Research Paper

Abstract :ASTM A356 insert ignore into journalissuearticles values(ISO AlSi7Mg); aluminum alloys are widely used in automotive and aircraft industries but they are selected mainly as automobiles wheel rim materials. They are composed of magnesium and silicon elements for improving corrosion and strength properties. Wheel rim materials are often electroplated by rim paints for decorative views and durability considerations. In this study; aluminum A356 alloy was coated by hard anodic oxidation method. 14 samples are prepared from an automobiles original 14 inch A356 aluminum alloy wheel rim. Samples are machined by 4x20x20 mm in dimensions for hard anodic oxidation. Three different case depths of hard anodic oxidation about 45, 65 and 90µm are applied on samples. Micro-structural investigations, micro-hardness surveys and the case depths of samples are thoroughly studied. The applicability of hard anodic oxidation method on wheel rim material A356 alloy is examined. The micro-structural surveys and micro-hardness tests proved that A356 aluminum alloy samples were hard anodic oxidized up to 90µm in coating thickness.
Keywords : Aluminum alloys, Aluminum A356 alloy, Hard anodic oxidation

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