Anodizing Characteristics of AA1100 in 20% Sulfuric–Phosphoric Acid Electrolytes under Aerated and Non-Aerated Conditions at Various Times
DOI:
https://doi.org/10.33603/jgst.v10i1.11796Keywords:
aluminum, anodizing, oxide layer, sulfuric acid, phosphoric acid, electrolyte solutionAbstract
Aluminum alloy AA1100 exhibits good corrosion resistance but suffers from low surface hardness and wear resistance, which can be improved through anodizing. However, limited studies have examined the combined influence of sulfuric–phosphoric acid electrolyte composition and aeration. This study investigates the effect of sulfuric–phosphoric acid electrolyte composition and aeration on oxide layer mass, thickness, and hardness during anodizing. Anodization was conducted using a total electrolyte concentration of 20% with varying sulfuric acid (15–20%) and phosphoric acid (5–0%) ratios at a current density of 3 A/dm², operating times of 15 and 30 minutes, and room temperature under aerated and non-aerated conditions. The results show that aeration significantly increased oxide layer formation, yielding an average oxide mass of 0.0173 g compared to 0.0106 g in non-aerated systems. The maximum oxide mass (0.0375 g) was obtained at 20% sulfuric acid with aeration for 30 minutes. The highest oxide layer thickness of 47.94 µm was achieved using a 19% sulfuric acid–1% phosphoric acid electrolyte under aerated conditions at 30 minutes. Meanwhile, the maximum surface hardness of 352.60 HVN was obtained at 15% sulfuric acid–5% phosphoric acid with aeration for 15 minutes. These findings demonstrate that electrolyte composition and aeration play a critical role in optimizing anodic oxide growth and mechanical properties of AA1100.
References
[1] D. Masruri, “Pengaruh Larutan Asam Sulfat pada Proses Anodisasi Terhadap Kekerasan Permukaan Aluminium,” Seminar Nasional Rekayasa Teknologi Manufaktur, vol. 01, pp. 8–11, 2021.
[2] R. Satya Pamungkas, X. Salahudin, and N. Mulyaningsih, “PENGARUH VARIASI WAKTU PROSES ANODIZING TERHADAP KARAKTERISTIK VELG RACING MERK SPRINT.”
[3] T. Endramawan et al., “Effect of Solution Concentration and Anodizing Coating Time on Hardness and Thickness Coating Of 7075-O Aluminum Alloy.” [Online]. Available: https://ijatr.polban.ac.id/
[4] Ahmad Zainal Arifin, “Pengaruh variasi konsentrasi larutan asam sulfat (H₂SO₄) pada proses anodizing aluminium seri 1XXX”.
[5] M. Raihan Surya Rusmana, I. Kholid Ibrahim, A. Ngatin, R. Pasonang Sihombing, J. Teknik Kimia, and P. Negeri Bandung, “Pengaruh Tegangan Operasi Dalam Peningkatan Sifat Mekanik Hasil Hard Anodizing Aluminium 1100 Dalam Asam Sulfat 15% Dan Asam Fosfat 1%.”
[6] E. Budiyanto and L. Dwi Yuono, “PERANAN AERASI SEL ELEKTROLISIS DALAM PEMBENTUKAN PORI PADA PROSES ANODIZING LOGAM ALUMINIUM,” vol. 7, no. 2, 2018.
[7] J. Kimia dan Terapannya et al., “Pengaruh Jenis Elektrolit Proses Anodisasi Aluminium Terhadap Efisiensi Proses Dan Sifat Mekanik (Kekerasan) Permukaan Dan Ketebalan Lapisan Oksida”, doi: 10.17977/um0260v6i22022p024.
[8] teguh puji rahardjo, “Studi pengaruh variasi waktu proses anodizing terhadap kekerasan, kekasaran, dan struktur mikro aluminium seri 1000,” 2021.
[9] M. Raihan Surya Rusmana, I. Kholid Ibrahim, A. Ngatin, R. Pasonang Sihombing, J. Teknik Kimia, and P. Negeri Bandung, “Pengaruh Tegangan Operasi Dalam Peningkatan Sifat Mekanik Hasil Hard Anodizing Aluminium 1100 Dalam Asam Sulfat 15% Dan Asam Fosfat 1%.”
[10] Muh. Nurhidayat, “Pengaruh Arus Dan Waktu Anodisasi Terhadap Kekerasan Pada Lapisan Oksida Aluminium,” Skripsi, 2017.
[11] safitri, “Analisis variasi voltase dan waktu proses anodizing terhadap bending strength dan ketebalan lapisan oksida,” 2021.
[12] S. Lima de Moura, “Aluminum Anodizing: The Study of the Structure of the Alumina Layer,” Wear, no. January, pp. 46580–46580, 2011.
[13] N. Adyono, W. D. Lestari, and L. Endahwati, “Military Type III Anodizing: The Optimal Limit Within Hardening Process of Aluminium Alloy in a Near Zero Temperature,” Proceedings of the 2nd Borobudur International Symposium on Science and Technology (BIS-STE 2020), vol. 203, pp. 148–153, 2021, doi: 10.2991/aer.k.210810.024.
[14] I. K. Ibrahim, I. A. Ramadhani, J. P. Alamsari, K. Khalisha, and R. P. Sihombing, “Karakterisasi Aluminium Pada Proses Hard Anodizing dalam Variasi Asam Fosfat dan Asam Sulfat 15%,” Prosiding Industrial Research Workshop and National Seminar, pp. 74–79, 2023.
[15] I. Salsabila, M. Raihan Surya Rusmana, N. Puspita, R. Fauzan, and R. Pasonang Sihombing, “Efektivitas Suhu Operasi dalam Peningkatan Lapisan Oksida Hasil Hard Anodizing Aluminium dalam Asam Sulfat 15% dan Asam Phospat 1%.”
[16] A. Wisnujati and F. Yudhanto, “KARAKTERISASI LAPISAN OKSIDA HASIL ANODIZING PADA ALUMINIUM DENGAN VARIABEL WAKTU PENCELUPAN,” Jurnal Rekayasa Mesin, vol. 14, no. 2, pp. 525–536, Aug. 2023, doi: 10.21776/jrm.v14i2.1309.
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