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All Journal Jurnal Rekayasa Mesin Jurnal Teknologi Terapan Manutech : Jurnal Teknologi Manufaktur JURNAL CRANKSHAFT Jurnal Konversi Energi dan Manufaktur International Journal of Applied Technology Research MACHINERY: Jurnal Teknologi Terapan Aptekmas : Jurnal Pengabdian Kepada Masyarakat Industrial Research Workshop and National Seminar Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Abdimas Terapan: Jurnal Pengabdian Kepada Masyarakat Terapan
Destri Muliastri
Jurusan Teknik Mesin, Politeknik Negeri Bandung
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Pengaruh Variasi Holding Time terhadap Mikrostruktur dan Sifat Mekanik AA 6061-T6 Arifin, Devi Eka Septiyani; Bintoro, Waluyo Musiono; Setiawan, Dibyo; Muliastri, Destri; Zen, Elfiah Fadhilah
JURNAL CRANKSHAFT Vol 7, No 1 (2024): Jurnal Crankshaft Vol.7 No.1 (2024)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/crankshaft.v7i1.12099

Abstract

Aluminium Alloy 6061 merupakan jenis Aluminium seri 6xxx yang memiliki sifat mekanik baik seperti ketahanan lelah, keuletan, ringan, mampu mesin, dan kemampuan bentuk yang tinggi. Akan tetapi, Aluminium Alloy memiliki kelemahan dari segi kekuatan yang lebih rendah jika dibandingkan dengan Aluminium seri 2xxx dan 7xxx. Sehingga dapat dioptimalkan, salah satunya melalui proses perlakuan panas T6. Proses ini dimulai dengan tahap solution treatment pada suhu 540°C selama 1 jam dan quenching menggunakan air. Selanjutnya, dilakukan artificial aging pada suhu 165°C dengan variasi waktu penahanan 1 jam, 3 jam, 5 jam, dan 7 jam. Penelitian ini bertujuan untuk mengamati perubahan kekuatan dan kekerasan Aluminium Alloy 6061 sebelum dan setelah age hardening. Hasil penelitian menunjukkan bahwa kekuatan tarik dan kekerasan optimum tercapai pada waktu penahanan 5 jam, dengan kekuatan tarik 293,9 MPa dan kekerasan 109 HV. Namun, pada penahanan 7 jam, kekuatan tarik menurun menjadi 727,2 MPa dan kekerasan menjadi 70,2 HV.
Effect of Magnesium Variation on Microstructure and Mechanical Properties of Aluminum Recycled Alloys Muliastri, Destri; Ruardhian, Mahir; Azmy, Ilham
Jurnal Rekayasa Mesin Vol. 20 No. 3 (2025): Volume 20, Nomor 3, Desember 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i3.6664

Abstract

The use of recycled aluminum (scrap) as a lightweight material in the automotive industry continues to grow, especially through the addition of magnesium elements to improve mechanical properties. This study analyzes the effect of adding magnesium of 5 Wt% and 10 Wt% on the mechanical properties and microstructure of aluminum scrap melting results using the sand casting method at a temperature of 707°C. The test results show that the addition of magnesium increases the hardness from 39.4 HV to 94.6 HV, and the tensile strength from 49.5 MPa to 181.5 MPa. Microstructural analysis shows the formation of more Mg phases in the aluminum matrix, resulting in a stronger and more homogeneous structure. The addition of 10 Wt% magnesium gives the most optimal results, proving that recycled aluminum has great potential to be used as a high-value engineering material through an alloying process.
Co-Authors Afriansyah, Zidan Ajeng Ayu Milanti Aldi Alfares Ambar Susanto Annisa Novitasari, Annisa Bambang Puguh Manunggal Bintoro, Waluyo Musiono Budi Triyono Casiman Sukardi Daniel Saragih, Albert Defrianto Pratama Devi Eka Septiyani Arifin Devi Eka Septyani Dewi, Yunita Citra Eka SeptiyaniArifin, Devi Emsa Ayudia Putri Fauziah, Febby Fitri Nur Indah Sari Gugun Nugraha Hasanah, Rahmawati Heri Widiantoro Ilham Azmy Iryani, Lenny Januar Nur Rohmah Suprihartini Lesmana, Prayoga M. Yogi Riyantama Isjoni Magfira Ayunda Salsabilla Muhammad Yusuf Muhammad, Wildan Naufal Afif Okviyanto, Toni Prayoga Lesmana Rachmad Imbang Trittjahjono Raharja, Ahmad Syakir Ramadhan, Kukuh Ruardhian, Mahir Rudi Rudiana Rudy Yuni W Sapto Prajogo setiawan, Dibyo Sihaloho, Nadia Fransiska Slamet Raharjo Slamet Sutjipto SRI UTAMI Sri Widarti Suminar, Dian Ratna Sutrimo Toto Tohir Vania Tingting Sirenden Yun Gemilang zahra salsabila Zainuddin Zainuddin Zen, Elfiah Fadhilah Zuhri, Muhammad Rizki