Abstract
Abstract The influence of heat treatments on the intergranular attack (IGA) and intergranular stress corrosion cracking (IGSCC) resistance of lnconel 690 (UNS N06690) were studied. The chromium profiles adjacent to the grain boundary were predicted by thermodynamic and kinetic modeling and benchmarked with experimental results. The relative susceptibilities of alloy 690 with various heat treatments to stress corrosion cracking (SCC) in 0.001 M Na2S2O3 and low pH at room temperature were evaluated. The results of slow strain rate tensile (SSRT) testing showed good IGSCC resistance of alloy 690. The results of the Huey test showed very little weight loss for various heat treatments. The good resistance of IGA and IGSCC for alloy 690 are considered to be attributed to the higher equilibrium chromium concentration at the intergranular carbide–matrix interface.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
