ANALISIS PENGENDALIAN KOROSI PADA ALUMINIUM 2024 – T4 MENGGUNAKAN PROSES ANODIZING METODE SULFURIC ANODIZE DAN INHIBITOR

Pradono, Juliandri (2018) ANALISIS PENGENDALIAN KOROSI PADA ALUMINIUM 2024 – T4 MENGGUNAKAN PROSES ANODIZING METODE SULFURIC ANODIZE DAN INHIBITOR. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Corrosion is material damage that is very dangerous to aircraft because corrosion can reduce the material's capabilities. Study This aims to determine the value of the corrosion rate from the results of the anodizing process and inhibitors. One type of inhibitor used is LPS 3. LPS 3 is an inorganic inhibitor used to coat aircraft structures which is made of metal. The materials used in this research are material type AL 2024 T-4. This research uses an anodizing process with sulfuric acid solution at a current of 0.4 amperes. Variations in immersion time are 25 minutes, 30 minutes, and 35 minutes. The method used to control corrosion is by inhibitor spraying method and anodizing coating method. In this research, the results obtained were the thickness of the oxide layer formed from the anodizing process of 3.8 µm, 14.6 µm, and 29.8 µm. Results of this research shows that the coating time affects the thickness of the oxide layer formed. The corrosion rate value for raw material is 0.35 mdd, meanwhile materials with anodizing and inhibitor spraying processes do not undergo corrosion. From the results of this research, anodizing can increase durability against corrosion so that the rate of corrosion can be inhibited.

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