Effect of La2O3 on microstructure and high-temperature wear property of hot-press sintering FeAl intermetallic compound
来源期刊：Journal of Rare Earths2009年第6期
论文作者：马兴伟 金洙吉 闫石 徐久军
文章页码：1031 - 1036
摘 要：FeAl intermetallic compound with different contents of rare earth oxide La2O3 addition was prepared by hot pressing the mechanically alloyed powders.Effect of La2O3 on microstructure and high-temperature wear property of the sintered FeAl samples was investigated in this paper.The results showed that 1 wt.% La2O3 addition could refine the microstructure and increase the density of the FeAl intermetallic compound,and correspondingly improved the high-temperature wear resistance.SEM and EDS analyses of the worn surface indicated that micro-ploughing and local melting combined with oxidation were the dominant wear mechanisms.
马兴伟1，金洙吉1，闫石1，徐久军2
1. Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education,Dalian University of Technology2. Electromechanics and Material Engineering College,Dalian Maritime University
摘 要：FeAl intermetallic compound with different contents of rare earth oxide La2O3 addition was prepared by hot pressing the mechanically alloyed powders.Effect of La2O3 on microstructure and high-temperature wear property of the sintered FeAl samples was investigated in this paper.The results showed that 1 wt.% La2O3 addition could refine the microstructure and increase the density of the FeAl intermetallic compound,and correspondingly improved the high-temperature wear resistance.SEM and EDS analyses of the worn surface indicated that micro-ploughing and local melting combined with oxidation were the dominant wear mechanisms.
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