Influence of Si content on the microstructure and property of RE-Al-Fe alloy
FAN Xiu-feng 1，YAN Yong-wang2，HUO Wen-xia1， LUO Long1， CHEN Yi-sheng1
1. Analytical and Testing Center， Inner Mongolia University of Science and Technology， Baotou 014010， China；
2. School of Material and Metallurgy， Inner Mongolia University of Science and Technology， Baotou 014010， China
Abstract：The effects of Si content on the microstructure and property of RE-Al-Fe alloys were investigated by doping different amounts of ferrosilicon into 3% RE-Al-Fe alloy. The microstructure and of phase structure of samples was investigated using scanning electron microscope （SEM） and X-ray diffraction （XRD）， respectively. The results showed that 3% RE-Al-Fe without Si was composed of FeAl3， Fe2Al5 and RE-Al-Fe phase. With the gradual increase of Si content （2%， 4%， 6% and 8%）， the Al-Fe-Si phase was observed in alloys. The strength of Al-Fe-Si diffraction peak firstly increased and then decreased with the increase of Si content， and the diffraction peak intensity was highest when the Si content was 6%. Similarly， the hardness of material also firstly increased and then decreased with the increase of Si content， and the maximum hardness was 92HV when the Si content was 6%.
范秀风，闫永旺，霍文霞，罗 龙，陈义胜. Si质量分数对RE-Al-Fe合金的组织及其性能的影响[J]. 物理测试, 2020, 38(2): 1-.
FAN Xiu-feng，YAN Yong-wang，HUO Wen-xia，LUO Long，CHEN Yi-sheng. Influence of Si content on the microstructure and property of RE-Al-Fe alloy. PHYSICS EXAMINATION AND TESTING, 2020, 38(2): 1-.
2020, Vol. 38 
