ABSTRACT
The duplex stainless steels are those alloys whose microstructures are a
mixture of austenite and ferrite. These alloys were developed to improve
the corrosion resistance of the austenitic stainlesses, particularly in the areas
of chloride stress corrosion cracking (SCC) and in maintaining corrosion
resistance after welding. The original duplex stainlesses developed did not
meet all of the criteria desired. Consequently, additional research
was undertaken.
