采用电沉积方法在硫酸盐-氯化物体系制备高铁Fe-Ni合金箔.研究了镀液温度、pH值、搅拌速度、添加剂YYD浓度、电流密度、NiSO4·6H2O浓度、FeSO4·7H2O浓度对合金箔中铁含量的影响,确定了适宜的工艺条件.采用XRD、阴极极化曲线、AFM和维氏硬度对不同铁含量箔的结构、形貌、硬度进行了表征.结果表明,在适宜的工艺条件下所得合金箔光亮平整,晶粒粗糙度约为50nm,Fe含量为63.50％,符合因瓦合金的组成.铁含量对结构和硬度影响大,当铁含量由55.06％升高到63.50％时,合金箔由面心立方Fe3Ni2转变为面心立方Fe3Ni2和体心立方Fe7Ni3的混合结构;当铁含量由52％升高到63.50％时,硬度降低了125HV.阴极极化曲线表明,添加剂YYD是铁的去极化剂,同时也是Fe-Ni合金的极化剂,可减少合金箔的应力.
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