Bath composition

mol/dm3

FeSO4∙7H2O

0.050

NiSO4∙6H2O

0.099

H3BO3

0.243

C2H8O7

0.026

Plating Conditions

Current density

25 mA/dm2

Plating period

20 min

Bath temperature

40˚C

pH

2.50

Counter electrode

Ni plate