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Materials 2016, 9(11), 951; doi:10.3390/ma9110951

Fabrication of Al/Mg/Al Composites via Accumulative Roll Bonding and Their Mechanical Properties

1
Nano Structural Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Mark T. Whittaker
Received: 18 September 2016 / Revised: 11 November 2016 / Accepted: 14 November 2016 / Published: 23 November 2016
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Abstract

Al(1060)/Mg(AZ31)/Al(1060) multilayered composite was successfully produced using an accumulative roll bonding (ARB) process for up to four cycles at an elevated temperature (400 °C). The microstructure evolution of the composites and the bonding characteristics at the interfaces between Al and Mg layers with increasing ARB cycles were characterized through optical microscopy, field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). It was found that the grains of Al and Mg layers were significantly refined and Al3Mg2 and Al12 Mg17 intermetallic compound layers formed at the Al/Mg bonding interfaces. The strength increased gradually and the ultimate tensile strength (UTS) reached a maximum value of about 240 MPa at the third pass. Furthermore, the strengthening mechanism of the composite was analyzed based on the fracture morphologies. View Full-Text
Keywords: accumulative roll bonding (ARB); Al/Mg alloy multilayered composite; AZ31 magnesium alloy; mechanical properties; microstructures; intermetallic compound accumulative roll bonding (ARB); Al/Mg alloy multilayered composite; AZ31 magnesium alloy; mechanical properties; microstructures; intermetallic compound
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nie, J.; Liu, M.; Wang, F.; Zhao, Y.; Li, Y.; Cao, Y.; Zhu, Y. Fabrication of Al/Mg/Al Composites via Accumulative Roll Bonding and Their Mechanical Properties. Materials 2016, 9, 951.

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