Structural and Mechanical Properties of Al/B4C Composites Fabricated by Wet Attrition Milling and Hot Extrusion
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第8期
论文作者：Morteza Alizadeh Rasool Amini
文章页码：725 - 730
摘 要：<正>In this study,Al matrix composites reinforced by 7.5 and 15 vol.%B4C particles and also monolithic Al（Al without the B4C particles） were produced by wet attrition milling and subsequent hot forward extrusion processes.The microstructure of the composites,evaluated by scanning electron microscopy（SEM）,showed that the B4C particles were properly distributed in the Al matrix.Mechanical properties of the AI/B4C composites and monolithic Al were investigated by tensile,wear and hardness tests.The results revealed that with increasing content of B4C particles,the tensile strength and microhardness of composites increased but the elongation decreased.In addition,the tensile strength and microhardness of composite samples were higher than those of monolithic Al.The density measurements revealed that the density of composites decreased with increasing content of the B4C particles.
Morteza Alizadeh1，Rasool Amini1
1. Department of Materials Science and Engineering,Shiraz University of Technology,Modarres Blvd.,71555-313 Shiraz,Iran
摘 要：<正>In this study,Al matrix composites reinforced by 7.5 and 15 vol.%B4C particles and also monolithic Al（Al without the B4C particles） were produced by wet attrition milling and subsequent hot forward extrusion processes.The microstructure of the composites,evaluated by scanning electron microscopy（SEM）,showed that the B4C particles were properly distributed in the Al matrix.Mechanical properties of the AI/B4C composites and monolithic Al were investigated by tensile,wear and hardness tests.The results revealed that with increasing content of B4C particles,the tensile strength and microhardness of composites increased but the elongation decreased.In addition,the tensile strength and microhardness of composite samples were higher than those of monolithic Al.The density measurements revealed that the density of composites decreased with increasing content of the B4C particles.
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