Effects of alloyed Cr and Cu on the corrosion behavior of low-alloy steel in a simulated groundwater solution

• DOI: 10.1016/j.corsci.2015.09.025
• Publication Date: 2015-10-18T16:55:52Z
• Authors: Qiufa Xu; Kewei Gao; Wenting Lv; Xiaolu Pang
• Keywords: Crevice corrosion; Carbon steel

Abstract The effects of Cr and Cu on the corrosion behavior of low-alloy steel have been studied by immersion tests and electrochemical measurements combined with scanning electron microscopy and analysis of polarization curves. The low-alloy steels exhibit higher uniform corrosion resistance than do carbon steel. Crevice corrosion morphology study indicated that the pit-like corrosion attack occurred only on the Cr-containing steels. The crevice corrosion tests indicated that Cr and Cu have synergistic effects on increasing the crevice corrosion of the steel.