• X J Xu

      Articles written in Bulletin of Materials Science

    • Bonding strength of Al/Mg/Al alloy tri-metallic laminates fabricated by hot rolling

      X P Zhang M J Tan T H Yang X J Xu J T Wang

      More Details Abstract Fulltext PDF

      One of major drawbacks of magnesium alloy is its low corrosion resistance, which can be improved by using an aluminized coating. In this paper, 7075 Al/Mg–12Gd–3Y–0.5Zr/7075 Al laminated composites were produced by a hot roll bonding method. The rolling temperature was determined based on the flow stresses of Mg–12Gd–3Y–0.5Zr magnesium alloy and 7075 Al alloy at elevated temperature. The bonding strength of the laminate composites and their mechanism were studied. The effects of the reduction ratio (single pass), the rolling temperature, and the subsequent annealing on the bonding strength were also investigated. It was observed that the bonding strength increased rapidly with the reduction ratio and slightly with the rolling temperature. The bonding strength increases with the annealing time until the annealing time reaches 2 h and then decreases. The mechanical bond plays a major role in the bonding strength.

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