Al- Mg alloy has perfect properties of resistance to corrosion and oxide,and moreover,has decorativeness and machinability. All these make it an ideal protective material. Due to light weight and high hydrogen storage,it has shown good perspective of application as a hydrogen storage material. To obtain good Al- Mg alloy,pure alloys of ultrafine structure need to be prepared. When preparing the alloys which are highly pure,electrodeposition is one of effective ways. At room temperature,the microstructures a...