Abstract
AbstractThe stress corrosion cracking (SCC) susceptibilities of a series of iron base alloys were evaluated in a 2M Ca(NO3 )2 solution at a temperature of 90°C. The inclusion distributions in each material were established using quantitative metallography and energy dispersive X-ray analysis (EDX). Electrochemical and microcorrosion measurements were also performed. Cracks were predominantly associated with pits that initiated at ruptures in the oxide film at potentials more anodic than -25 mV or by dissolution at sulphur containing inclusions at potentials more cathodic than -25 mV. Reducing the inclusion content and/or the activity of the inclusions in iron base alloys moves the minimum potential for cracking to more anodic potentials but does not eliminate SCC. The addition of sulphate to the test solution increased the susceptibilities of the alloys.
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.
