Effect of Inhibitior HEDP-ATMP-TTA on Corrosion of HSn70-1A Copper-alloy

Synergistic effect of HEDP,ATMP and TTA on corrosion inhibition of HSn70-1A copper-alloy in the industrial recirculation cooling water inoculated with SRB was studied by means of weight loss method、electrochemical polarization and electrochemical impedance spectroscopy(EIS) techniques.It was found that there was a synergistic effect between HEDP,ATMP and TTA.The corrosion rate of HSn70-1A copper-alloy descended with enhancement of concentration of the corrosion inhibitor.