Abstract
The electrochemical behavior and oxide film structure of the weld of 316L/52M/A508 dissimilar metal welded joints were investigated via scanning electron microscopy (SEM), potentiodynamic polarization measurements, electrochemical impedance spectroscopy (EIS), and X‐ray photoelectron spectroscopy (XPS). The electrochemical measurements revealed that the weld materials could be arranged in descending order of protectiveness of the oxide film formed on their surface; that is, Alloy52Mw > Alloy52Mb > C52M > C308. The results of EIS and XPS analyses showed that the oxide films formed on these materials were duplex‐structured; this duplex structure consisted of a Cr‐rich (in 52M nickel‐based weld materials) or Cr/Fe‐rich (in C308 stainless steel weld materials) inner layer and a Ni/Fe‐rich (in 52M nickel‐based weld materials) or Fe‐rich (in 308 stainless steel weld materials) porous outer layer.
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.
