Simulated body fluid electrochemical response of Zr-based metallic glasses with different degrees of crystallization

C. H. Huang; J. C. Huang; J. B. Li; J. S.C. Jang

doi:10.1016/j.msec.2013.06.007

Simulated body fluid electrochemical response of Zr-based metallic glasses with different degrees of crystallization

C. H. Huang, J. C. Huang, J. B. Li, J. S.C. Jang

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

The bio-electrochemical response in simulated body fluid of the Zr ₅₃Cu₃₀Ni₉Al₈ metallic glasses with different degrees of partial crystallization was systematically examined and discussed. Through thermal annealing, the volume fractions of the crystalline phases are determined to be 0, 34, 63, and near 100%. Based on the bio-corrosion voltage and current, as well as the polarization resistance, it is concluded that the fully amorphous alloy exhibits the highest bio-electrochemical resistance. With an increasing degree of partial crystallization, the corrosion resistance becomes progressively degraded. The passive current reveals that the fully amorphous metallic glasses can form a more protective and denser passive film on the metallic glass surface. The formation of reactive nanocrystalline phases in the amorphous matrix would reduce the bio-corrosion resistance.

Original language	English
Pages (from-to)	4183-4187
Number of pages	5
Journal	Materials Science and Engineering C
Volume	33
Issue number	7
DOIs	https://doi.org/10.1016/j.msec.2013.06.007
State	Published - Oct 2013

Keywords

Annealing
Bio-corrosion resistance
Crystallization
Metallic glasses
Nanocrystalline phase

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10.1016/j.msec.2013.06.007

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title = "Simulated body fluid electrochemical response of Zr-based metallic glasses with different degrees of crystallization",

abstract = "The bio-electrochemical response in simulated body fluid of the Zr 53Cu30Ni9Al8 metallic glasses with different degrees of partial crystallization was systematically examined and discussed. Through thermal annealing, the volume fractions of the crystalline phases are determined to be 0, 34, 63, and near 100%. Based on the bio-corrosion voltage and current, as well as the polarization resistance, it is concluded that the fully amorphous alloy exhibits the highest bio-electrochemical resistance. With an increasing degree of partial crystallization, the corrosion resistance becomes progressively degraded. The passive current reveals that the fully amorphous metallic glasses can form a more protective and denser passive film on the metallic glass surface. The formation of reactive nanocrystalline phases in the amorphous matrix would reduce the bio-corrosion resistance.",

keywords = "Annealing, Bio-corrosion resistance, Crystallization, Metallic glasses, Nanocrystalline phase",

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AU - Huang, C. H.

AU - Huang, J. C.

AU - Li, J. B.

AU - Jang, J. S.C.

PY - 2013/10

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N2 - The bio-electrochemical response in simulated body fluid of the Zr 53Cu30Ni9Al8 metallic glasses with different degrees of partial crystallization was systematically examined and discussed. Through thermal annealing, the volume fractions of the crystalline phases are determined to be 0, 34, 63, and near 100%. Based on the bio-corrosion voltage and current, as well as the polarization resistance, it is concluded that the fully amorphous alloy exhibits the highest bio-electrochemical resistance. With an increasing degree of partial crystallization, the corrosion resistance becomes progressively degraded. The passive current reveals that the fully amorphous metallic glasses can form a more protective and denser passive film on the metallic glass surface. The formation of reactive nanocrystalline phases in the amorphous matrix would reduce the bio-corrosion resistance.

AB - The bio-electrochemical response in simulated body fluid of the Zr 53Cu30Ni9Al8 metallic glasses with different degrees of partial crystallization was systematically examined and discussed. Through thermal annealing, the volume fractions of the crystalline phases are determined to be 0, 34, 63, and near 100%. Based on the bio-corrosion voltage and current, as well as the polarization resistance, it is concluded that the fully amorphous alloy exhibits the highest bio-electrochemical resistance. With an increasing degree of partial crystallization, the corrosion resistance becomes progressively degraded. The passive current reveals that the fully amorphous metallic glasses can form a more protective and denser passive film on the metallic glass surface. The formation of reactive nanocrystalline phases in the amorphous matrix would reduce the bio-corrosion resistance.

KW - Annealing

KW - Bio-corrosion resistance

KW - Crystallization

KW - Metallic glasses

KW - Nanocrystalline phase

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Simulated body fluid electrochemical response of Zr-based metallic glasses with different degrees of crystallization

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Keywords

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