Corrosion Behavior and Microstructure of Stir Zone in Fe-30Mn-3Al-3Si Twinning-Induced Plasticity Steel after Friction Stir Welding
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The effect of friction stir welding on microstructure and corrosion property was studied in Fe-30Mn-3Al-3Si (wt.%) twinning-induced plasticity steel using both an electron backscattered diffractometer and electrochemical testing (i.e., polarization test and electrochemical impedance spectroscope). The stir zone has a relatively higher corrosion resistance with uniform dissolution on the surface despite after welding, whereas the base metal shows localized corrosion attack with deep and long degradation along the grain boundaries. This is due to the corrosion-resistant coincidence site lattice boundaries caused by discontinuous dynamic recrystallization via the grain boundary bulging during the friction stir welding.
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Effect of plasma preheating on weld quality and tool life during friction stir welding of DH36 steel
2021 ◽
pp. 095440542199013
2021 ◽
Vol 23
(4)
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pp. 140-154
2013 ◽
Vol 199
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pp. 412-417
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2010 ◽
Vol 139-141
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pp. 299-302
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2009 ◽
Vol 60
(1)
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pp. 13-16
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