近年来稀士元素在Zn基合金中的应用得到推广,在汽车、拖拉机、内燃机铸件以及打字铅字的锌基合金中加入少量稀土金属,改善了材料的机械性能和抗氧化耐腐蚀能力。热镀工艺是最常见的金属防腐方法,1981年美国ILZRO公司研究成功GALFAN合金(Zn—5％AI—0.05％ΣRE),在Zn—5％AI合金中加入少量混合稀土改善了镀层的耐蚀性和成型性,GALFAN合金是一种极有发展前途的热 In recent years, the application of rare earth elements in Zn-based alloys has been promoted. Adding a small amount of rare earth metals to the zinc-based alloys for automobiles, tractors, internal combustion engine castings and typing typed characters improves the mechanical properties and oxidation and corrosion resistance of the materials. Hot-plating is the most common method of metal corrosion. In 1981, USA ILZRO successfully researched GALFAN alloy (Zn-5% AI-0.05% ΣRE). Adding a small amount of rare earth mixed into Zn-5% AI alloy improved the corrosion resistance of the coating Sex and formability, GALFAN alloy is a very promising heat