1、前言金属镧(La)材料是轻稀土产品之一。由于它具有独特的物化性质,所以在钢铁、有色金属及其合金、发火合金和贮氧材料等的应用日益发展,尤其是镧的合金的应用更有前途。我国具有丰富的镧资源。据报道,我国镧的工业储量约为1140 1, the preface Metal lanthanum (La) material is one of light rare earth products. Due to its unique physical and chemical properties, the applications of iron and steel, non-ferrous metals and their alloys, pyroelectric alloys and oxygen storage materials are becoming more and more popular. In particular, the application of lanthanum alloys is more promising. China is rich in lanthanum resources. It is reported that China’s industrial reserves of lanthanum is about 1140