The electrochemical behavior and pitting corrosion in a Cl containing solution (0.05 mol/L H2SO4+ 0.05 mol/L NaCl) of the ultrafine-grained 304L stainless steel (304L SS) with average grain size of (130±30) nm prepared by equal channel angular pressing (ECAP) technique were examined using potentiodynamic polarization curves, cycle polarization curves, electrochemical impedance spectroscopy (EIS), Mott-Schottky (M-S) curve measurements together with SEM observation of surface morphology. As compared to the coarse-grained counterpart, *辽宁省自然科学基金资助项目201202127 收到初稿日期: 2015-01-21,收到修改稿日期: 2015-05-27 作者简介:朴楠,女, 1989年生,硕士生 DOI: 10.11900/0412.1961.2015.00062 第1077-1084页 pp.1077-1084
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