Study on WC dispersion-strengthened copper
来源期刊：Rare Metals2004年第2期
论文作者：WANG Mengjun;ZHANG Liyong;LIU Xinyu School of Material Science and Engineering, Central South University Changsha , China Guilin College of Electronic Technology, Guangxi , China
文章页码：120 - 125
摘 要：<正> Dispersion-strengthened copper （DSC） with WC as dispersoid was prepared by means of mechanical alloying（MA） following the tradinonal powder metallurgy （P/M） route. Influence of WC content on the propertes of material wasdiscussed in detail, and result shows that when the volume fraction of WC is 1.6%, the material achieves the best overallproperty, and a little more particle addition led to a less superior property owing to occurrence of particle agglomeration.The as-sintered composite was designed to undergo a deformation of 75%. It is proved that appropriate deformation ishelpful to attain a higher density and consequentiy better properties. Deformed material was then exposed to elevated tem-perature to test its effect on material. Annealing for 1 h at 1173K caused material to reeover quite completely, but no obvi-ous recrystallization was observed. It’s supposed the particles handicaps motion of dislocations and material demonstratesgood retention of strength with substantial improvement in elongatio
WANG Mengjun;ZHANG Liyong;LIU Xinyu School of Material Science and Engineering, Central South University Changsha 410083, China Guilin College of Electronic Technology, Guangxi 541004, China
摘 要：<正> Dispersion-strengthened copper （DSC） with WC as dispersoid was prepared by means of mechanical alloying（MA） following the tradinonal powder metallurgy （P/M） route. Influence of WC content on the propertes of material wasdiscussed in detail, and result shows that when the volume fraction of WC is 1.6%, the material achieves the best overallproperty, and a little more particle addition led to a less superior property owing to occurrence of particle agglomeration.The as-sintered composite was designed to undergo a deformation of 75%. It is proved that appropriate deformation ishelpful to attain a higher density and consequentiy better properties. Deformed material was then exposed to elevated tem-perature to test its effect on material. Annealing for 1 h at 1173K caused material to reeover quite completely, but no obvi-ous recrystallization was observed. It’s supposed the particles handicaps motion of dislocations and material demonstratesgood retention of strength with substantial improvement in elongatio
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