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

Jinfeng Nie, Mingxing Liu, Fang Wang, Yonghao Zhao*, Yusheng Li, Yang Cao, Yuntian Zhu

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

57 Citations (Scopus)
36 Downloads (CityUHK Scholars)

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.
Original languageEnglish
Article number951
JournalMaterials
Volume9
Issue number11
Online published23 Nov 2016
DOIs
Publication statusPublished - Nov 2016
Externally publishedYes

Research Keywords

  • Accumulative roll bonding (ARB)
  • Al/Mg alloy multilayered composite
  • AZ31 magnesium alloy
  • Intermetallic compound
  • Mechanical properties
  • Microstructures

Publisher's Copyright Statement

  • This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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