What is the major disadvantage of hardened steel? Do you think this form of iron would be wear resistant and retain a sharpened edge?
The major disadvantage of hardened steel is that it is very brittle unless it is tempered. Hardened steel would be wear resistant, and would hold an edge as long as you don't cut anything harder than a boiled egg - the impact of the knife on a cutting board would shatter it.
a disadvantage is the fact that the cold forming capability of this steel
