PENGARUH KUAT ARUS LISTRIK PADA PROSES BARREL ELECTROPLATING TEMBAGA TERHADAP KETEBALAN LAPISAN, KEKERASAN, DAN KETAHANAN KOROSI DI SUBSTRAT ALUMINIUM DENGAN LAPISAN AWAL SENG

MUHAMAD IQMAL MAULANA, . (2026) PENGARUH KUAT ARUS LISTRIK PADA PROSES BARREL ELECTROPLATING TEMBAGA TERHADAP KETEBALAN LAPISAN, KEKERASAN, DAN KETAHANAN KOROSI DI SUBSTRAT ALUMINIUM DENGAN LAPISAN AWAL SENG. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh variasi kuat arus listrik pada 400 mA, 500 Ma, dan 600 mA terhadap laju deposisi, ketebalan lapisan, kekerasan permukaan, dan ketahanan korosi lapisan tembaga (Cu) pada substrat aluminium (Al) berlapis seng (Zn) melalui proses barrel electroplating, serta menentukan kuat arus listrik yang menghasilkan lapisan paling optimal. Metode yang digunakan adalah eksperimen dengan tiga spesimen (I-400, I-500, dan I-600) yang diproses selama satu jam pada masing-masing kuat arus. Laju deposisi dan ketebalan lapisan dihitung dari selisih massa spesimen, kekerasan permukaan diukur dengan metode uji kekerasan Vickers, dan ketahanan korosi diuji melalui metode polarisasi potensiodinamik dengan ekstrapolasi tafel, kemudian seluruh data dianalisis secara deskriptif menggunakan nilai rata-rata dan standar deviasi. Hasil penelitian menunjukkan laju deposisi dan ketebalan lapisan meningkat dari 4,30 μm (I-400) menjadi 8,81 μm (I-600), kekerasan permukaan meningkat dari 47,39 HV menjadi 51,64 HV, sedangkan laju korosi menurun dari 0,200 mmpy menjadi 0,123 mmpy. Dapat disimpulkan bahwa kuat arus listrik mA menghasilkan karakteristik lapisan Cu paling optimal, dengan laju deposisi tertinggi, lapisan paling tebal, permukaan paling keras, dan ketahanan korosi paling tinggi di antara ketiga variasi yang diteliti. **** This study aims to determine the effect of variations in electric current intensity at 400 mA, 500 mA, and 600 mA on the deposition rate, coating thickness, surface hardness, and corrosion resistance of a copper (Cu) coating on a zinc (Zn)- coated aluminum (Al) substrate via the barrel electroplating process, as well as to determine the current density that produces the most optimal coating. The method used involved an experiment with three specimens (I-400, I-500, and I-600) processed for one hour at each current density. The deposition rate and coating thickness were calculated from the difference in specimen mass; surface hardness was measured using the Vickers hardness test; and corrosion resistance was tested using the potentiodynamic polarization method with Tafel extrapolation. All data were then analyzed descriptively using mean values and standard deviations. The results showed that the deposition rate and coating thickness increased from 4.30 μm (I-400) to 8.81 μm (I-600), surface hardness increased from 47.39 HV to 51.64 HV, while the corrosion rate decreased from 0.200 mmpy to 0.123 mmpy. It can be concluded that an electric current of mA produces the most optimal characteristics of the Cu coating, with the highest deposition rate, the thickest coating, the hardest surface, and the highest corrosion resistance among the three variations studied.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Ferry Budhi Susetyo, M.T., M.Si. 2). Ir. Yunita Sari, M.T., M.Si.
Subjects:	Teknologi dan Ilmu Terapan > Teknik Mesin, Mekanika Teknik Teknologi dan Ilmu Terapan > Teknik Pertambangan, Metalurgi
Divisions:	FT > S1 Pendidikan Teknik Mesin
Depositing User:	Muhamad Iqmal Maulana .
Date Deposited:	19 Aug 2026 07:44
Last Modified:	19 Aug 2026 07:44
URI:	http://repository.unj.ac.id/id/eprint/71512

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