... damage development that leads to differences in macroscopic SCC initiation behavior are discussed. PWR UNS N06600 (Alloy 600) stress corrosion cracking stress corrosion crack initiation intergranular attack grain boundary carbide creep INTRODUCTION Although Ni-base UNS N06600 (Alloy 600) has been...

... and mitigation measures to avoid such failures have been provided. Duplex stainless steel chloride stress corrosion cracking sulphide stress cracking SCC SSC intergranular attack transgranular cracking INTRODUCTION Duplex stainless steels (DSS) are becoming common in the refining industry due...

... alloy C-276 sensitization polarization scan repassivation potential intergranular attack The nickel-chromium-molybdenum alloys, such as alloys C-276 (UNS N10276), alloy 625, N06110, and alloy 22, exhibit very high resistance to pitting in oxidizing chloride environments. Pitting corrosion is most...

... at elevated temperature (80°C) and under potentiostatic and open circuit conditions has been investigated. Both pitting corrosion and intergranular attack are observed on specimens polarized into the transpassive dissolution region. Damage functions constructed for pits that nucleate and grow under high...

..., which was always preceded by intergranular attack. It was found that the rate-controlling step of the intergranular propagation was the diffusion of iodine to the tip of the crack. It is not clear if the mechanism of the intergranular attack is due to some sort of chemical attack of the disrupted atomic...

... studied and the crack propagation rate was found to vary depending on the size of the solvent molecule. As the solvent molecular weight increased, the crack propagation rate decreased. Preceding crack propagation, intergranular attack was found in all the solutions tested. The intergranular corrosion rate...

... in Batch Digesters , Proc. TAPPI Eng. Conf. , pp. 1193 - 1200 ( 1998 ). 8 Wensley   A. , Intergranular Attack of Stainless Steels in Kraft Digester Liquors , Paper No. 465 , NACE Corrosion 96 Conference , ( 1996 ). 9 Yeske   R. , Stress Corrosion Cracking of Continuous Digesters...

.... For austenitic stainless steels these include general corrosion thinning, pitting corrosion, intergranular attack and stress corrosion cracking. Corrosion protection measures include anodic protection, application of stainless steel weld overlay, and thermal spray coating. Construction of new digesters from...

... be properly distinguished. Intergranular attack stress corrosion cracking Ni-base alloys grain boundaries oxidation analytical electron microscopy INTRODUCTION Pressurized water reactor (PWR) steam generators, particularly those with mill-annealed alloy 600 tubing, have exhibiting a continuing...

... and under cyclic burner rig conditions. These laboratory results are compared with alloy performance of couplings subjected to test track and field exposure. couplings high temperature corrosion cyclic oxidation stress corrosion cracking pitting intergranular attack alloy 409 (UNS S40900) alloy 304...

... of alloy G-3 OCTG has no discernable effect on stress corrosion cracking resistance. Also, no effect of grain size on intergranular attack (IGA) susceptibility was observed in the Streicher Test, ASTM Standard Test Method G28A. slow strain rate intergranular attack testing evaluation grain size UNS...

... with intergranular attack. Above 250 °C, the whole surface of the alloy was attacked, shallow pits and deep intergranular attack appeared. This behavior can be explained by transpassive dissolution of the protecting Cr(III)oxide layer and leads to severe material loss. The upper temperature limit of severe corrosion...