Effect of erbium on properties and microstructure of Al-Si eutectic alloy
来源期刊：Journal of Rare Earths2010年第6期
论文作者：邢鹏飞 高波 庄艳歆 刘凯华 涂赣峰
文章页码：927 - 930
摘 要：Eutectic Al-12.6 wt.%Si alloys with various contents of the rare earth element Er were prepared by the conventional casting technique. The effect of Er on the microstructure and properties of the eutectic Al-Si alloys was investigated using optical microscopy, scanning electron microscopy as well as the friction and wear tests. It was found that the addition of Er obviously improved the anti-wear properties, and reduced the friction coefficient of the alloys. The appropriate addition of Er would change the size and shape of the eutectic silicon, and thereby refine the microstructure of the Al-Si alloys. The refinement mechanism was also discussed.
邢鹏飞1，高波1，庄艳歆2，刘凯华1，涂赣峰1
1. School of Materials and Metallurgy, Northeastern University2. Key Laboratory of Electromagnetic Processing of Materials, Northeastern University
摘 要：Eutectic Al-12.6 wt.%Si alloys with various contents of the rare earth element Er were prepared by the conventional casting technique. The effect of Er on the microstructure and properties of the eutectic Al-Si alloys was investigated using optical microscopy, scanning electron microscopy as well as the friction and wear tests. It was found that the addition of Er obviously improved the anti-wear properties, and reduced the friction coefficient of the alloys. The appropriate addition of Er would change the size and shape of the eutectic silicon, and thereby refine the microstructure of the Al-Si alloys. The refinement mechanism was also discussed.
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