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Corrosion Resistance of Fe-based Bulk Metallic Glass with Sulfide Inclusions in HCl Solution |
Yong HUANG, Shanlin WANG(), Shuaixing WANG, Yubing GONG, Liming KE |
Light Alloy Processing Science and Defence Technology Key Laboratory, Nanchang Hangkong University, Nanchang 330063, China |
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Abstract The corrosion behavior of Fe-based bulk metallic glass with sulfide inclusions in HCl solution was investigated by electrochemical test technique and immersion test. Results showed that the Fe-based bulk metallic glass presented obvious passivation characteristic in solutions with various amount of HCl at different temperature, however its corrosion resistance gradually decreased with the increasing HCl-concentration and temperature. The as-casted amorphous alloy had just only one capacitive loop, which indicated that the faraday process of the electrode system was controlled by the electrode potential. The SEM corrosion morphology after immersion tests showed that sulfide inclusions presented non-obvious influence on the corrosion behavior of Fe-based bulk metallic glass, whilst non-obvious pitting corrosion was triggered.
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Received: 22 February 2017
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Fund: Supported by National Natural Science Foundation of China (51461031), Jiangxi Science and Technology Key R&D Plan (20161BBH80031) and Jiangxi Provincial Education Department Fund (GJJ150733) |
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