Description : Explain the effects of following chemical elements on iron. 1) Chromium 2) Nickel 3) Silicon.
Last Answer : Effect on Iron: 1) chromium: Cr increases the hardenability of steel while there is a minimal effect on the ductility. Cr is normally added to steel for increasing oxidation resistance, and ... form of graphite results in a softer iron, reduces shrinkage, lowers strength, and decreases density.