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Junipitoyo, Bambang
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Journal : Sainstech Nusantara

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Enhancing the Properties of Aluminum AA-1100: The Effect of Mg and Copper Additives with Heat Treatment BIMA, Bima Wahyu Saputra; Junipitoyo, Bambang
SAINSTECH NUSANTARA Vol. 2 No. 1 (2025): February 2025
Publisher : Nusantara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71225/jstn.v2i1.62

Abstract

Aluminum alloys, renowned for their low density, high strength, and corrosion resistance, are widely utilized in industries such as aerospace. However, Aluminum 1100 is typically too soft, which necessitates the addition of alloying elements like magnesium (Mg) and copper (Cu) to improve its mechanical properties. This study examines the effects of adding 1.2% magnesium and varying copper concentrations (3.9%, 4.1%, and 4.3%) to Aluminum 1100, followed by heat treatment at 100°C, 200°C, 300°C, and 400°C for 120 minutes. The physical properties, including density, as well as mechanical properties—tensile strength and Vickers hardness—were evaluated. The results revealed that the highest density (3.408 g/cm³) occurred at 300°C with 1.2% Mg and 4.1% Cu. The maximum tensile strength (130.7948 MPa) was observed in the alloy with 4.3% Cu at 400°C, while the highest strain (0.03995%) was recorded at 300°C with 4.3% Cu. The lowest modulus of elasticity (2635.292 MPa) was measured at 100°C with 4.3% Cu, and the highest value (4162.763 MPa) was obtained at 200°C with 4.1% Cu. Additionally, the highest Vickers hardness (90.27 HVN) was achieved in the alloy containing 1.2% Mg and 4.3% Cu at 400°C.
Effect of Heat Treatment and 1,5% Magnesium Addition on Density, Hardness, and Tensile Strength of Al-Cu-Mg Alloys Junipitoyo, Bambang; Said, Djamaaludin; Dwiyanto, Dwiyanto
SAINSTECH NUSANTARA Vol. 1 No. 3 (2024): August 2024
Publisher : Nusantara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71225/jstn.v1i3.61

Abstract

This research focuses on adding aluminum 1100 combinations by adding magnesium (Mg) as much as 1.5% and varying the percentage of copper (Cu). 3.9%, 4.1%, 4.3%/ with heat treatment at temperatures of 1000C, 2000C, 3000C, and 4000C  with a holding time at each temperature of 120 minutes, then tested the aluminum combination's density, Vickers hardness, and tensile strength. The final results of this study showed that in the density test, the highest density value obtained was 4.24 gr/cm3 in a mixture of 1.5% magnesium and 4.3% copper (Cu) with a temperature of 2000C. In the Vickers hardness test, the highest hardness value was 83.9 HVN in a mixture of 1.5% magnesium and 4.3% copper with a temperature of 4000C. The final result of the research conducted was to obtain the tensile strength results of each specimen by obtaining the maximum tensile strength of the 4.1% Cu mixture specimen with a temperature of 4000C of 163.2698 Mpa and the highest strain value in the 4.3% Cu mixture specimen with a temperature of 4000C of 0.0472 %, for the results of the lowest elastic modulus value in the 4.3% Cu mixture specimen with a temperature of 2000C of 3147.319 Mpa and the highest value of the 4.1 % Cu mixture specimen with a temperature of 4000C of 5947.898 Mpa.
Co-Authors BIMA, Bima Wahyu Saputra Dwiyanto . Moch. Agus Choiron Ridwan, Ridwan Sabitah, A'yan Said, Djamaaludin Sakti, Gunawan Setyo Hariyadi Suudy, Ahmad Hamim Suyatmo, Suyatmo Wirawan, Willy Artha