Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 27, Issue 1, Pages 15-21Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/S1005-0302(11)60019-4
Keywords
Accumulative roll bonding (ARB); Al/Mg alloy multilayered composite; Ultra-fine grains; Hardness; Bending properties
Funding
- National Natural Science Foundation of China [50890173]
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Al/Mg alloy multilayered composites were produced successfully at the lower temperature (280 degrees 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. De lamination 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.
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