Influence of pre-strain on corrosion behavior of additively manufactured CoCrFeMnNi high-entropy alloy

摘要

In the present study, pre -straining was performed on an equiatomic CoCrFeMnNi high -entropy alloy (HEA) fabricated by laser melting deposition technology (LMD). The effect of pre -strain levels on the corrosion behaviors in 0.6 M NaCl solution was carefully examined. Compared with LMD -fabricated HEA, the pre - strained one exhibited a wider corrosion potential (Ecorr) and a lower corrosion current density (I corr). The enhanced corrosion resistance induced by pre -straining is reasonably interpreted from the perspective of structural change. The obtained results can shed more insights into widening the industrial applications of additively manufactured HEAs in extreme conditions.