This invention provides a metal material with a bismuth coating being enables the subsequent coating to be accomplished at a high throwing power, and has excellent corrosion resistance, coating adhesion, and, being able to be produced with reduced damage to the environment, the metal material having a surface and a bismuth-containing layer deposited on at least a part of the surface of the metal material, wherein a percentage of bismuth atoms in number of atoms in the surface layer of the metal material with a bismuth coating is at least 10%.
本发明提供了一种具有
铋涂层的
金属材料,该
金属材料可在高投掷力下完成后续涂层,并具有优异的耐腐蚀性和涂层附着力,而且能够在生产过程中减少对环境的破坏,该
金属材料具有一个表面和一个至少沉积在
金属材料部分表面上的含
铋层,其中
铋原子在具有
铋涂层的
金属材料表面层的原子数中所占百分比至少为 10%。