Recent Developments in Corrosion resistant non-ferrous metals and Alloys

THE importance of iron and its alloys as materials
of construction has prompted the classification for
metals and alloys as ferrous and non-ferrous : the
latter includes all the metals(and their alloys)other
than iron. However, iron is basically a rather reactive
metal and, except in the passive state, is not suitable
for corrosion resistant applications. The non-ferrous
metals and alloys have established themselves for this
purpose, both as protective coatings for iron or as
primary materials of construction in corrosive envir-onments. However, these metals are widely divergent in
their chemical and physical properties and a common
discussion of their corrosion characteristics is rather
dillicult.