Abstract
Abstract In the present work, Alloy 617 was subjected to creep in the absence and presence of hot corrosion (i.e. with and without a deposit of sodium salts) under different load magnitudes at 850 °C. Additionally, a sample of the alloy was exposed to hot corrosion without applying creep. The results revealed that the creep behavior of Alloy 617 was substantially affected by hot corrosion which accelerated creep and led to a considerable reduction in the fracture ductility and creep life of the alloy. Microscopic examinations demonstrated that the strain-to-rupture decreased due mainly to the damage accumulation during tertiary creep. Various mechanisms of hot-corrosion/creep interaction were discussed that highlighted the destructive role of M23C6 precipitates in the interaction. It was explained that hot corrosion contributed to the reduction of grain-boundary cohesive-strength followed by extensive cavitation at transvers grain boundaries.
Sign-in/Register to access full text options 
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.
