Abstract
Corrosion properties of a bulk Cu 0.5NiAlCoCrFeSi glassy alloy such as electrochemical corrosion potential (ECP), potentiodynamic polarization, and weight loss measurements were carried out for the first time in 288 °C high-purity (outlet conductivity < 0.07 μS cm − 1) water. The change of ECP with dissolved oxygen (DO) showed a sigmoid curve. In addition, the Cu 0.5NiAlCoCrFeSi alloy exhibited a wide passive region and the passive current density was ∼ 2 × 10 − 4 A cm − 2 in deaerated water containing 0.01 N sodium sulfate (Na 2SO 4) at 288 °C. A very low weight loss of ∼ 4.5 μg mm − 1 was also found for the Cu 0.5NiAlCoCrFeSi alloy after immersion in deaerated 288 °C water for 12 weeks.
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