Journal Published Online: 03 April 2020
Volume 49, Issue 4

Fabrication of Bimetal Aluminum-5 % Alumina-Bromine Composites by Warm Accumulative Roll Bonding

CODEN: JTEVAB

Abstract

In this study, aluminum alloy 1050 and brass 70/30 are used to fabricate reinforced bimetal aluminum-5 % alumina (Al2O3)-bromine composites via a warm accumulative roll bonding (WARB) process. The aluminum and bromine strips were firstly welded together with the RB process up to 6 ARB cycles. In the WARB process, the rolled samples were preheated at 280°C for 7 min before each rolling cycle. The mechanical properties of the aluminum-Al2O3-bromine composite samples were evaluated in comparison to aluminum-5 % Al2O3 and bromine-5 % Al2O3 accumulative roll-bonded single-metal composite samples. It was shown that aluminum and brass deform in a similar way in the aluminum-Al2O3-bromine composites up two ARB cycles and then bromine layers began to neck. The average strength of the aluminum-Al2O3-bromine composites is higher than that of these two single-metal metal matrix composites. It was shown that the ductility and strength of the fabricated composite samples enhanced with the WARB cycles. Moreover, the fracture surfaces of bimetal composites have been studied by scanning electron microscopy.

Author Information

Vini, M. Heydari
Department of Mechanical Engineering, Mobarakeh Branch, Islamic Azad University, Isfahan, Iran
Daneshmand, S.
Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran
Pages: 10
Price: $25.00
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Details
Stock #: JTE20190863
ISSN: 0090-3973
DOI: 10.1520/JTE20190863