Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 41, Pages 9938-9945Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2011.07.103
Keywords
Metal-intermetallic composite; Accumulative roll bonding process; Mechanical properties
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Funding
- Shiraz University
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In this research, Al/Ni multilayers composites were produced by accumulative roll bonding and then annealed at different temperatures and durations. The structure and mechanical properties of the fabricated metal intermetallic composites (MICs) were investigated. Scanning electron microscopy and X-ray diffraction analyses were used to evaluate the structure and composition of the composite. The Al3Ni intermetallic phase is formed in the Al/Ni interface of the samples annealed at 300 and 400 degrees C. When the temperature increased to 500 degrees C, the Al3Ni2 phase was formed in the composite structure and grew, while the Al3Ni and Al phases were simultaneously dissociated. At these conditions, the strength of MIC reached the highest content and was enhanced by increasing time. At 600 degrees C, the AlNi phase was formed and the mechanical properties of MIC were intensively degraded due to the formation of structural porosities. (C) 2011 Elsevier B.V. All rights reserved.
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