J. Mater. Sci. Technol. ›› 2011, Vol. 27 ›› Issue (1): 15-21.

• Research Articles • 上一篇    下一篇

Microstructures and mechanical properties of Al/Mg alloy multilayered composites produced by accumulative roll bonding

H.S. Liu, B. Zhang, G.P. Zhang   

  1. 1) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
    2) Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education, School of Materials & Metallurgy, Northeastern University, Shenyang 110004, China
  • 收稿日期:2010-03-29 修回日期:2010-05-14 出版日期:2011-01-28 发布日期:2011-01-30
  • 通讯作者: 张广平
  • 基金资助:

    the National Natural Science Foundation of China (Grant No. 50890173)

Microstructures and Mechanical Properties of Al/Mg Alloy Multilayered Composites Produced by Accumulative Roll Bonding

H.S. Liu, B. Zhang, G.P. Zhang   

  1. 1) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
    2) Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education, School of Materials & Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2010-03-29 Revised:2010-05-14 Online:2011-01-28 Published:2011-01-30
  • Supported by:

    the National Natural Science Foundation of China (Grant No. 50890173). The authors thank Dr. X.F. Zhu, Mrs. W. Gao and Mrs. M.J. Zhang for the help of SEM, TEM observations and stimulating discussion

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摘要： Al/Mg alloy multilayered composites have been produced by accumulative roll bonding (ARB) processing. The microstructures of Al and Mg alloy layers were characterized with scanning electron microscopy and transmission electron microscopy. Vickers hardness test and three-point bending test were conducted to investigate mechanical properties of the composites. It is found that Vickers hardness, bending strength and stiffness modulus of the Al/Mg alloy multilayered composite increases with increasing the ARB pass. Delamination and crack propagation along the interface are the two main failure behaviors of the multilayered composite subjected to bending load. Strengthening and fracture mechanisms of the composite are analyzed.

关键词: Accumulative Roll Bonding, Al/Mg alloy multilayered composite, Ultra-fine grains, Hardness, Bending properties

Abstract: Al/Mg alloy multilayered composites were produced successfully at the lower temperature (280°C) by accumulative roll bonding (ARB) processing technique. The microstructures of Al and Mg alloy layers were characterized by scanning electron microscopy and transmission electron microscopy. Vickers hardness and three-point bending tests were conducted to investigate mechanical properties of the composites. It is found that Vickers hardness, bending strength and stiffness modulus of the Al/Mg alloy multilayered composite increase with increasing the ARB pass. Delamination and crack propagation along the interface are the two main failure modes of the multilayered composite subjected to bending load. Strengthening and fracture mechanisms of the composite are analyzed.

Key words: Accumulative roll bonding (ARB), Al/Mg alloy multilayered composite, Ultra-fine grains, Hardness, Bending properties