Effects of copper addition on the formation of inclusions and the resistance to pitting corrosion of high performance duplex stainless steels

► Copper increased the number and area of numerous oxides and oxy-sulfides. ► Copper increased the activity of chromium. ► Pitting corrosion resistance decreased with an increase in copper content. ► The thermodynamic prediction was in good agreement with the experimental results. To elucidate the e...

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