Water is the most abundant nutrient in our body and plays an important transmission function in every body cell and tissue. Sixty percent of our body weight is water. The fact that you can live without food for a long period of time, even months, but live only for a few days without water is true.
The addition of zinc, a sacrificial anode, would prevent the iron metal from corroding. According to the table of Standard Reduction Potentials, the standard reduction potential of zinc is about -0.76 volts. The standard reduction potential of iron is about -0.44 volts.
Iron is typically used in nickel-base alloys to reduce costs, not to promote corrosion resistance. However, iron does provide nickel with improved resistance to H2SO4 in concentrations above 50%. Molybdenum in nickel substantially improves resistance to nonoxidizing acids.