Determination of Susceptibility to Intergranular Corrosion of UNS 31803 Type Duplex Stainless Steel by Electrochemical Reactivation Method
Figure 8
Optical micrographs after DLEPR test for sample aged at 725°C for 31622 min (a) after slightly polished (large austenite in white, attacked regions in black, sigma: small white regions) (b) electrolytically etched with NaOH (austenite in white, sigma in brown, attacked regions in black).
