Header menu link for other important links
Effect of Multipass Friction Stir Processing on Mechanical and Corrosion Behavior of 2507 Super Duplex Stainless Steel
M.K. Mishra, G. Gunasekaran, A.G. Rao, , N. Prabhu
Published in Springer New York LLC
Volume: 26
Issue: 2
Pages: 849 - 860
The microstructure, mechanical properties, and corrosion behavior of 2507 super duplex stainless steel after multipass friction stir processing (FSP) were examined. A significant refinement in grain size of both ferrite and austenite was observed in stir zone resulting in improved yield and tensile strength. Electrochemical impedance spectroscopy and anodic polarization studies in 3.5 wt.% NaCl solution showed nobler corrosion characteristics with increasing number of FSP passes. This was evident from the decrease in corrosion current density, decrease in passive current density, and increase in polarization resistance. Also, the decrease in density of defects, based on Mott-Schottky analysis, further confirms the improvement in corrosion resistance of 2507 super duplex stainless steel after multipass FSP. © 2016, ASM International.
About the journal
JournalData powered by TypesetJournal of Materials Engineering and Performance
PublisherData powered by TypesetSpringer New York LLC