SIRUMAPEA, BRAVO GIHON (2026) ANALISIS PENGARUH ARUS LISTRIK DAN WAKTU ELECTROPLATING TERHADAP KETEBALAN LAPISAN KADMIUM PADA SPESIMEN PADUAN Fe-Cr-Ni-Cu TIPE PRECIPITATION HARDENING STAINLESS STEEL (15-5PH) PADA KOMPONEN MAIN WHEEL LANDING GEAR B737-800. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Cadmium electroplating is widely applied in engineering components, particularly in the aerospace industry, to improve corrosion resistance and extend material service life. Precipitation hardening stainless steel type 15-5 PH is a structural material that requires additional surface protection to maintain reliability during operation. This study aims to analyze the effect of electric current and plating time on cadmium coating thickness, verify experimental results using Faraday-based theoretical calculations, and develop an empirical regression model describing the relationship between process parameters and coating thickness.The study was conducted experimentally using electric currents of 5 A, 10 A, and 15 A with plating durations of 30, 60, and 90 minutes. Coating thickness was measured at three different points using a coating thickness measuring instrument and averaged to obtain representative values. The results show that coating thickness increased from approximately 42 µm at 5 A–30 minutes to about 366 µm at 15 A–90 minutes.Theoretical calculations based on Faraday’s law yielded higher thickness values than the experimental results because they do not account for deposition efficiency and operational conditions. In contrast, the regression model based on total electric charge produced an empirical linear relationship that better represents the experimental trend.The findings indicate that cadmium coating thickness in electroplating is primarily governed by the total electric charge passing through the system, while the actual thickness strongly depends on process efficiency, current distribution, and electrolyte conditions. These results provide a scientific basis for controlling electroplating parameters to obtain protective coatings suitable for engineering applications, particularly in aircraft landing gear systems. Keywords: electroplating, cadmium, electric current, plating time, coating thickness, 15-5 PH stainless steel Proses electroplating kadmium banyak digunakan pada komponen teknik, khususnya di industri penerbangan, untuk meningkatkan ketahanan korosi dan memperpanjang umur pakai material. Paduan precipitation hardening stainless steel tipe 15-5 PH merupakan material struktural yang memerlukan perlindungan permukaan tambahan agar tetap memiliki keandalan selama operasi. Penelitian ini bertujuan untuk menganalisis pengaruh arus listrik dan waktu electroplating terhadap ketebalan lapisan kadmium, memverifikasi hasil eksperimen dengan perhitungan teoritis berbasis hukum Faraday, serta menyusun model regresi empiris yang menggambarkan hubungan parameter proses dengan ketebalan lapisan.Penelitian dilakukan secara eksperimental menggunakan variasi arus listrik sebesar 5 A, 10 A, dan 15 A dengan waktu pelapisan 30, 60, dan 90 menit. Ketebalan lapisan diukur pada tiga titik pengukuran menggunakan alat ukur ketebalan lapisan, kemudian dirata-ratakan untuk memperoleh nilai representatif. Hasil pengujian menunjukkan bahwa ketebalan lapisan meningkat dari sekitar 42 µm pada kondisi 5 A–30 menit hingga sekitar 366 µm pada kondisi 15 A–90 menit.Perhitungan teoritis menggunakan hukum Faraday menghasilkan ketebalan yang lebih besar dibandingkan hasil eksperimen karena tidak mempertimbangkan efisiensi deposisi dan kondisi operasional. Sebaliknya, pemodelan regresi berbasis muatan listrik total menghasilkan persamaan empiris yang mampu menggambarkan hubungan linear antara muatan listrik dan ketebalan lapisan dengan kecenderungan yang mendekati data eksperimen.Hasil penelitian menunjukkan bahwa ketebalan lapisan kadmium pada proses electroplating dikendalikan oleh jumlah muatan listrik total yang mengalir, sedangkan nilai aktual dipengaruhi oleh efisiensi proses, distribusi arus, dan kondisi larutan. Temuan ini memberikan dasar ilmiah untuk pengendalian parameter electroplating guna memperoleh lapisan pelindung yang sesuai dengan kebutuhan komponen teknik, khususnya pada aplikasi sistem landing gear pesawat. Kata kunci: electroplating, kadmium, arus listrik, waktu pelapisan, ketebalan lapisan, stainless steel 15-5 PH
| Item Type: | Thesis (S1) |
|---|---|
| NIM/NIDN Creators: | 41320120053 |
| Uncontrolled Keywords: | electroplating, kadmium, arus listrik, waktu pelapisan, ketebalan lapisan, stainless steel 15-5 PH |
| Subjects: | 500 Natural Science and Mathematics/Ilmu-ilmu Alam dan Matematika > 530 Physics/Fisika > 537 Electricity/Fisika Listrik > 537.6 Electrodinamics, Electric Current/Elektrodinamik, Arus Listrik 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | khalimah |
| Date Deposited: | 28 Mar 2026 07:02 |
| Last Modified: | 28 Mar 2026 07:02 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/101762 |
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