Effect of compaction pressure on microstructure and properties of mechanically alloyed Cu20Fe80 alloy during microwave sintering
WANG Bo1，WANG Yang1，DONG Zhong-qi2，YIN Su-hua2，FU Jun-wei2
（1. School of Materials Science and Engineering， Hebei University of Science and Technology， Shijiazhuang 050000， China 2. Engineering Research Institute， Hebei College of Industry and Technology， Shijiazhuang 050091，China）
Abstract：Cu20Fe80 alloy was prepared by mechanical alloying， cold pressing and microwave sintering. The microstructure and phase composition of Cu20Fe80 alloy were analyzed by SEM and X-ray diffraction. The density and hardness of the alloy were determined， and the microstructure evolution during the preparation process was studied. The results show that the microstructure of Cu20Fe80 alloy is lamellar. With the increase of pressing pressure， the Cu20Fe80 alloy compacts gradually become dense， and the formability of the alloy increases. After microwave sintering， the microstructure of the alloy is also lamellar. With the increase of pressing pressure， the grain boundary becomes obvious， the porosity decreases， the density and the hardness increase.
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2018, Vol. 28 
