Effects of aging time on intergranular and pitting corrosion behavior of Cu-bearing 304L stainless steel in comparison with 304L stainless steel
By Jiang, Jie; Xu, Dake; Xi, Tong; Shahzad, M. Babar; Khan, M. Saleem; Zhao, Jinlong; Fan, Xinmin; Yang, Chunguang; Gu, Tingyue; Yang, Ke
Published in Corrosion Science
NULL
2016
Abstract
Abstract In this work, the effects of aging time on intergranular and pitting corrosion behavior of Cu-bearing 304L and 304L stainless steels were investigated by using the double loop electrochemical potentiokinetic reactivation (DL-EPR) and the potentiostatic polarization electrochemical methods. The results showed that the Cu-bearing 304L stainless steel possessed a higher intergranular corrosion tendency and a higher pitting corrosion rate for extended aging time. The {TEM} observation and 3D {APT} analysis confirmed that above behavior could mainly attribute to the precipitation of the Cu-rich phase in the Cu-bearing 304L stainless steel.
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