Studi Pemakaian Alumunium (6061) Dicampur dengan Bahan Silicone Carbide (SiC) untuk Pemakaian Bingkai Jendela Kapal (Scuttle) dan Peningkatan Kekerasan pada Alumunium

Narotama, Luqman Hakim (2026) Studi Pemakaian Alumunium (6061) Dicampur dengan Bahan Silicone Carbide (SiC) untuk Pemakaian Bingkai Jendela Kapal (Scuttle) dan Peningkatan Kekerasan pada Alumunium. Undergraduate thesis, Universitas Muhammadiyah Surabaya.

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Abstract

Penelitian ini bertujuan untuk mengetahui proses pembuatan serta karakteristik mekanik dan mikrostruktur pada komponen jendela kapal (porthole) yang diproduksi menggunakan material komposit Aluminium–Silicon Carbide (Al–SiC) dengan fraksi massa SiC sebesar 10%. Material komposit dibuat melalui metode stir casting dengan kecepatan pengadukan 500–700 rpm dan suhu penuangan 720–750°C. Serbuk SiC dipreheat pada suhu 250–300°C untuk meningkatkan wettability dan mencegah terbentuknya aglomerasi saat proses pencampuran. Hasil cor dituangkan ke dalam cetakan pasir (green sand moulding) yang telah dilengkapi sistem saluran dan riser pada bagian tebal komponen seperti boss engsel.
Pengujian dilakukan mencakup uji metalografi, uji kekerasan Brinell, serta pengamatan visual terhadap hasil pengecoran. Struktur mikro menunjukkan bahwa partikel SiC 10% terdistribusi cukup merata pada matriks aluminium dan sebagian berada pada batas butir.

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This study aims to determine the manufacturing process, mechanical characteristics, and microstructure of porthole components produced using Aluminum–Silicon Carbide (Al– SiC) composite material with a SiC mass fraction of 10%. The composite material was made using the stir casting method at a stirring speed of 500–700 rpm and a pouring temperature of 720–750°C. The SiC powder was preheated at 250–300°C to improve wettability and prevent agglomeration during the mixing process. The casting was poured into a sand mold (green sand molding) equipped with a channel system and risers in thick components such as the hinge boss.
The Testing included metallographic testing, Brinell hardness testing, and visual inspection of the casting. The microstructure showed that 10% SiC particles were fairly evenly distributed throughout the aluminum matrix, with some located at grain boundaries.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Aluminium–SiC, komposit metal matrix, stir casting, porthole kapal, mikrostruktur, kekerasan, Aluminum–SiC, metal matrix composite, stir casting, ship porthole, microstructure, hardness
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TN Mining engineering. Metallurgy
Divisions: 08. Fakultas Teknik > Teknik Mesin
Depositing User: Luqman Hakim
Date Deposited: 22 Apr 2026 10:02
Last Modified: 22 Apr 2026 10:02
URI: https://repository.um-surabaya.ac.id/id/eprint/11498

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