Abstract
Selected corrosion behaviors of a Cu 0.5 NiAlCoCrFeSi bulk glassy alloy like electrochemical corrosion potential (ECP), potentiodynamic polarization, and weight loss were investigated in 288 °C high-purity water. The change of ECP with dissolved oxygen showed a sigmoid curve. The Cu 0.5 NiAlCoCrFeSi alloy exhibited a wide passive region and the passive current density was ∼2 × 10 -4 A/cm 2 in deaerated 288 °C water containing 0.01 N sodium sulfate. A low weight loss of ∼4.5 μg/mm 2 was found for the Cu 0.5 NiAlCoCrFeSi alloy after immersion in deaerated 288 °C water for 12 weeks. © 2006 Acta Materialia Inc.