Pramono, Agus and Zulfia, Anne and Alhamidi, Ahmad Ali and Alfirano, Alfirano and Suryana, Suryana and Milandia, Anistasia (2021) Characteristics of aluminum-based composites reinforced with Al2O3 or B4C as a result of accumulative roll bonding. TEKNIKA: JURNAL SAINS DAN TEKNOLOGI, 17 (02). pp. 7-12.

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Abstract

Metalworking technology is currently developing rapidly, especially the processing of metal composite materials. The metalworking process in which ultra-large plastic strains are introduced into the device to create ultra-fine grained metal is a new method for producing high-strength metals. This method is called accumulative roll bonding (ARB). The ideal operating temperature used in the ARB process is the use of dynamic recrystallization temperatures. Roll compression in ARB affects the microstructure and mechanical properties of the composite material, where rolling compression can produce the application of simple forces sequentially evenly on the compressed workpiece. With the addition of Al2O3 and B4C reinforcement in the ARB process, it is expected that the mechanical properties will increase significantly. Composite AA1070 or Al2O3 produces an average hardness: 43.36 BHN, using B4C reinforcement increased 53.50 BHN with AA17075 with Al2O3 reinforcement the hardness was 87.20, with B4C increased significantly by 105.2 BHN. This study compares Al2O3 and B4C as reinforcement on an application in metal matrix composites (MMC). Characteristics compared and comparison of types of AA1070 or AA7075 matrix in their suitability between the use of matrix and reinforcement processed by ARB

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