Effect of La2O3 on microstructure and properties of Cu20Fe80 alloy by microwave sintering

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Fu, Junwei^1 ; Yin, Suhua^1 ; Dong, Zhongqi^1 ; Wang, Yang^2 ; Liu, Yanxia^1

Engineering Research Institute, Hebei College of Industry and Technology, Shijiazhuang

050091, China^1

School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei

050000, China^2

关键词: Alloy powder;    Cold pressing;    Hardness changes;    Microstructure and properties;    Microwave sintering;    Powder milling;    Sem and xrd;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012014/pdf
DOI  :  10.1088/1757-899X/207/1/012014

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

It was prepared that Cu20Fe80alloys using the mechanical alloying and cold pressing and the microwave sintering. The microstructure and the phase composition of Cu20Fe80alloy were analyzed by SEM and XRD, respectively. The density and hardness of the alloys were measured. The effect of La2O3on microstructure and properties of Cu20Fe80alloy was investigated during the microwave sintering. The results have shown that the powder milling structure of Cu20Fe80alloy is a flake layer which is refined and the mechanical alloying enhanced with increasing La2O3content; The microstructure of the Cu20Fe80alloy powder blank cold pressed is lamellar which gradually become dense, the density increases and the formability is improved with the increase of La2O3content; The microstructure of the Cu20Fe80alloys sintering was lamellar that the voids and the density and the hardness change with the increase of La2O3content and the best La2O3content was 0.2%.