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Selected corrosion behaviors of a Cu0.5NiAlCoCrFeSi bulk glassy alloy in 288 °C high-purity water |
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| Authors: | Y.Y. Chen U.T. Hong J.W. Yeh H.C. Shih |
| Affiliation: | Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC |
| Abstract: | Selected corrosion behaviors of a Cu0.5NiAlCoCrFeSi 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 Cu0.5NiAlCoCrFeSi alloy exhibited a wide passive region and the passive current density was 2 × 10−4 A/cm2 in deaerated 288 °C water containing 0.01 N sodium sulfate. A low weight loss of 4.5 μg/mm2 was found for the Cu0.5NiAlCoCrFeSi alloy after immersion in deaerated 288 °C water for 12 weeks. |
| Keywords: | Corrosion behaviors Bulk glassy alloy Electrochemical corrosion potential Potentiodynamic polarization Weight loss |
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