Are all super duplex stainless steels alike? Does tungsten additions have an influence on localized corrosion resistance?
Spoiler: it does, and it is remarkable.
CPT
Use of electrochemical techniques to determine the effect of Sigma phase (σ-phase) precipitation on a 25% Cr Super Duplex Stainless Steel (Paper no. C2015-5595)
This blog entry provides the link to download our final NACE CORROSION 2015 publication on the effect of σ-phase precipitation on localized corrosion of super duplex stainless steels.
Maximum allowable service temperatures and the ASTM G48 test
Can we use the ASTM G48 test to establish the maximum allowable temperature of a metal or alloy in an oxidizing environment like seawater?
This post discusses how the ferric chloride electrolyte of the ASTM G48 test compares with other oxidizing environments such as seawater.