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Corrosion behavior of bulk metallic glasses in different aqueous solutions

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  • Special Topic on Bulk Metallic Glasses
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Abstract

The corrosion behavior of as-cast fully amorphous, structural relaxed amorphous and crystallized Fe65.5Cr4Mo4Ga4P12C5B5.5 bulk metallic glasses (BMGs) in NaCl, HCl and NaOH solutions was investigated by electrochemical polarization and immersion methods. X-ray photoelectron spectroscopy measurements was used to analyze the changes of the elements on the alloy surface before and after immersion in various solutions. The corrosion resistance of the Fe65.5Cr4Mo4Ga4P12C5B5.5 BMG was better than its structural relaxation/crystallization counterparts and common alloys (such as stainless steel, carbonized steel, and steel) in the selected aqueous solutions. The high corrosion resistance of this alloy in corrosive solutions leads to the formation of Fe-, Cr- and Mo-enriched protective thin surface films.

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Correspondence to Gong Li.

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Li, G., Huang, L., Dong, Y. et al. Corrosion behavior of bulk metallic glasses in different aqueous solutions. Sci. China Phys. Mech. Astron. 53, 435–439 (2010). https://doi.org/10.1007/s11433-010-0139-5

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  • DOI: https://doi.org/10.1007/s11433-010-0139-5

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