Effect of Rare Earths in Aluminum and Aluminum Alloys and Its Applications

The addition of rare earths as trace elements in aluminum and aluminum alloys does not only refine the grains but also purifies the melt,reduces the gas and inclusions contents in it so as to improve the comprehensive properties of aluminum and aluminum alloys.The mechanism of the effect is discussed.The present applications and future prospects of adding RE in aluminum and aluminum alloys are described.