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All Journal PROSIDING SEMINAR NASIONAL Rotasi Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Proceeding Of The International Seminar and Conference 2015 Majalah Ilmiah MOMENTUM JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Taman Vokasi Jurnal Teknik Mesin Indonesia Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Jurnal Ilmiah Cendekia Eksakta Jurnal Inovasi Teknik Kimia Jurnal Litbang Provinsi Jawa Tengah Abdi Masya Jurnal Rekayasa Energi dan Mekanika Mechanical Engineering for Society and Industry Automotive Experiences Creative Research in Engineering (CERIE) Mediagro Journal of Chemical Process and Material Technology Suara Teknik : Jurnal Ilmiah Jurnal Polimesin Palawa Jurnal Pengabdian Kepada Masyarakat
Helmy Purwanto
Universitas Wahid Hasyim
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Journal : Jurnal Polimesin

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Physical and mechanical properties of aluminum matrix composites reinforced with copper powder via stir casting method Kholis, Nur; Purnama, Yudhi; Nugroho, Agung; Purwanto, Helmy; Hawari, Rizal
Jurnal Polimesin Vol 23, No 1 (2025): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i1.5587

Abstract

The stir casting method is a widely used technique for producing metal matrix composites by incorporating reinforcement particles into molten metal. This study investigates the effect of copper (Cu) powder reinforcement on the microstructure and mechanical properties of aluminum matrix composites fabricated using the stir casting method. The base material consists of recycled aluminum from vehicle wheels, with copper added as a reinforcement to enhance the mechanical characteristics of the cast material. The casting process involved melting aluminum waste at 650°C, followed by the gradual addition of Cu powder in varying volume fractions (2.5%, 5%, and 7.5%) while stirring at a constant speed of 500 rpm for 5 minutes to ensure uniform distribution. The microstructural analysis was conducted using optical metallography, while tensile and hardness properties were evaluated using a Universal Testing Machine. The results indicate that the most uniform powder distribution was achieved at 5% Cu reinforcement, whereas the highest porosity was observed at 7.5% due to particle agglomeration. The highest hardness value (42.52 BHN) was observed at 2.5% Cu reinforcement, while the maximum tensile strength (111.7 MPa) was obtained at 5% Cu. However, an increase in Cu content beyond 5% led to a decline in mechanical properties due to increased porosity and reduced bonding efficiency. These findings highlight the importance of optimizing Cu content in aluminum matrix composites to balance mechanical strength and structural integrity.
Co-Authors . Suyitno Abdul Latif Abdul Wahid, Muhammad Agus Suprapto AHMAD ADIB Ahmad Adib Aji Topan Asmoro Ananto, Reza Ardian Andika Dwi Putra Anindito Purnowidodo Anindito Purnowidodo Anjis Ahmad Soleh Anwar, Mohammad Zainul Artisa Endar Kurniawan Assyifa Khairunnisa Aufa Fahmazida Bajar Sulistiyo Bayu Fredo Wicaksono Darmanto Darmanto Darmanto Darmanto Darul Iman Dergo Nurhadi Diah Ayu Lestari Dwi Setyo Agus Dwi Setyo Agus Prakoso Eka nur Khalish, Yahdi Erika Febiana Lasifa Habibul Mujtabah Hadi Nasbey Harsono Harsono Hawari, Rizal Ihsan Fauzi Ilham Fakhrudin Imam Syafaat Indah Hartati Irvan Sovian Irwan Hardiansyah Kosasi Irwanto Irwanto Jaenal Arifin Jamhari Jamhari Kuat Hasan Lutfi Aris Sasongko Luthfiyah Harum Pratiwi M. N. Habibiy M. Yusrul Niam A Mahendra, Isa Meta Liftyastuti Miftah Azizi Miftakhul Huda Miharja Awan Jaya Mochamat Sobirin Moh Hendri Priyono Mohamad Lasno Mufidin, Wahid Muh. Aris Yahya, Muh. Aris Muhamad Hafid Falihurrozan Muhammad Dzulfikar Muhammad Ilhammudin Muhammad Rafi Najib Muhammad Syaiful Nurkholiq Mujiyono Mujiyono Mulyonorejo - Musa Assegaff Mustagfirin Nesia Ursulla Endarhadi Ngatmin Ngatmin Nugroho, Agung Nur Kholis Nur Kholis Nur Kholis Nyoto Lestari Pangestu, Wahyu Adi Parwening Sabdo Hermawan Prawibowo, Hartanto Prio Tri Iswanto Pungkas Prayitno Rahmatulloh, Salim Renan Subantoro Reza Ardian Ananto Rifky Ismail Rita Dwi Ratnani Rudy Soenoko Rudy Soenoko Rusman Rusman Saiful Amin SM Bondan Respati SM Bondan Respati Sri M. Bondan Respati Sri M. Bondan Respati Sri Mulyo Bondan Respati Sugeng Prasojo Sugeng Priyono Sugiarto Sugiarto Sumidi Sumidi Suntari Suntari Suwardiyono Suwardiyono Ulin Nuha Wahid, Muhammad Abdul Wahyu Kheren Sabyantoro Wicaksono, Burhanuddin Yudhi Purnama Zainal Abidin