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Effects of crystallization on corrosion behaviours of a Ni-based bulk metallic glass

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Abstract

The effects of microstructure change on the corrosion behaviours of Ni55Nb20Ti10Zr8Co7 bulk glass-forming alloy were investigated in 1 mol/L HCl and 0.5 mol/L H2SO4 solutions. Different microstructures of the Ni-based alloy were achieved by annealing the bulk glassy rod prepared by copper mould casting. The microstructure, grain size, grain distribution, and phase composition were characterized. Electrochemical behaviours of the Ni-based alloy were revealed by static immersion and anodic potentiodynamic polarization tests. It is indicated that the corrosion behaviours of the Ni-based bulk glass-forming alloy are related to its microstructures, while the fully crystallized alloy exhibits a relatively lower corrosion resistance than those of the amorphous states.

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Authors and Affiliations

  1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, China

    Sen Liu, Lu Huang, Shu-jie Pang & Tao Zhang

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  1. Sen Liu
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  2. Lu Huang
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  3. Shu-jie Pang
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  4. Tao Zhang
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Corresponding author

Correspondence to Shu-jie Pang.

Additional information

This work was financially supported by the National Natural Science Foundation of China (Nos.50631010 and 50771005), the National Basic Research Priorities Program of China (No.2007CB613900), and the Program for New Century Excellent Talents in Chinese Universities (No.NCET-07-0041).

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Liu, S., Huang, L., Pang, Sj. et al. Effects of crystallization on corrosion behaviours of a Ni-based bulk metallic glass. Int J Miner Metall Mater 19, 146–150 (2012). https://doi.org/10.1007/s12613-012-0530-5

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  • DOI: https://doi.org/10.1007/s12613-012-0530-5

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