Recent Developments in Corrosion resistant non-ferrous metals and Alloys

Abstract

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.