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Study on the Thermal Stability of Cu-14Fe in Situ Composite without and with Trace Ag

Study on the Thermal Stability of Cu-14Fe in Situ Composite without and with Trace Ag
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摘要 The thermal stability of Cu-14Fe and Cu-14Fe-0.07Ag in situ composites is investigated.The evolution of Fe filaments in two composites is analyzed detailedly by annealing at high temperature.The results indicate that the Cu-14Fe in situ composite exhibits two kinds of evolution of Fe filament,the longitudinal splitting of Fe filaments at low temperature(below 600 ℃) and spheroidization of Fe filaments at high temperature(above 600 ℃).With the addition of trace Ag,the longitudinal splitting of Fe filaments at low temperature is accelerated,while spheroidization of Fe filaments at high temperature inhibited.The microstructure evolution procedure of Cu-14Fe without and with trace Ag has been modeled.This work would promote the understanding of the microstructure evolution of Cu-Fe in situ composite. The thermal stability of Cu-14Fe and Cu-14Fe-0.07Ag in situ composites is investigated. The evolution of Fe filaments in two composites is analyzed detailedly by annealing at high temperature. The results indicate that the Cu-14Fe in situ composite exhibits two kinds of evolution of Fe filament, the longitudinal splitting of Fe filaments at low temperature (below 600 ~C) and spheroidization of Fe filaments at high temperature (above 600 ~C). With the addition of trace Ag, the longitudinal splitting of Fe filaments at low temperature is accelerated, while spheroidization of Fe filaments at high temperature inhibited. The microstructure evolution procedure of Cu-14Fe without and with trace Ag has been modeled. This work would promote the understanding of the nficrostructure evolution of Cu-Fe in situ composite.
出处 《Journal of Shanghai Jiaotong university(Science)》 EI 2012年第3期268-272,共5页 上海交通大学学报(英文版)
基金 the National Natural Science Foundation of China(Nos.51001058,50965015 and 50961006) the Project of International Exchange Cooperation of the National Natural Science Foundation of China(No.51210105002) the Project of International Cooperation and Exchanges of Jiangxi Province (No.2010EHA02000) the Natural Science Foundation of Jiangxi Province(No.2010GQC0135) the Open Foundation of Jiangxi Key Laboratory for Advanced Copper and Tungsten Materials(No.2010-WT-08) the Project of National Technology Supporting Program of China(No.2011BAE22B02)
关键词 Cu-Fe in situ composite thermal stability microstructure evolution theoretical model Cu-Fe in situ composite, thermal stability, microstructure evolution, theoretical model
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参考文献12

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