Processing of nanostructured metallic matrix composites by a modified accumulative roll bonding method with structural and mechanical considerations
来源期刊:International Journal of Minerals Metallurgy and Materials2012年第10期
论文作者:Amir Hossein Yaghtin Erfan Salahinejad Ali Khosravifard
文章页码:951 - 956
摘 要:Particulate reinforced metallic matrix composites have attracted considerable attention due to their lightweight,high strength,high specific modulus,and good wear resistance.AlB 4 C composite strips were produced in this work by a modified accumulative roll bonding process where the strips were rotated 90° around the normal direction between successive passes.Transmission electron microscopy and X-ray diffraction analyses reveal the development of nanostructures in the Al matrix after seven passes.It is found that the B 4 C reinforcement distribution in the matrix is improved by progression of the process.Additionally,the tensile yield strength and elongation of the processed materials are increased with the increase of passes.
Amir Hossein Yaghtin1,Erfan Salahinejad2,Ali Khosravifard1
1. Department of Materials Science and Engineering(Shiraz Branch),Islamic Azad University,Shiraz 71955,Iran2. Department of Materials Science and Engineering,School of Engineering,Shiraz University,Shiraz 7134851154,Iran
摘 要:Particulate reinforced metallic matrix composites have attracted considerable attention due to their lightweight,high strength,high specific modulus,and good wear resistance.AlB 4 C composite strips were produced in this work by a modified accumulative roll bonding process where the strips were rotated 90° around the normal direction between successive passes.Transmission electron microscopy and X-ray diffraction analyses reveal the development of nanostructures in the Al matrix after seven passes.It is found that the B 4 C reinforcement distribution in the matrix is improved by progression of the process.Additionally,the tensile yield strength and elongation of the processed materials are increased with the increase of passes.
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