Correlation between corrosion performance and surface wettability in ZrTiCuNiBe bulk metallic glasses

Wang, Y.B.; Li, H. F.; Zheng, Yufeng; Wei, Shicheng; Li, M.

doi:10.1063/1.3429591

Cited by 34 publications

(22 citation statements)

References 11 publications

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“…The present experimental results indicate that Nb addition simultaneously improves both the hydrophilicity and the corrosion resistance of the Zr-Al-CoNb glassy alloys. This is different from an earlier finding that related high corrosion resistance with low hydrophilicity for ZrTiCuNiBe metallic glasses [27]. The improvement in the corrosion resistance of the Zr-Al-Co glassy alloy with Nb addition is attributed to the change in the composition of the passive film, because Nb addition to Zr-based glassy alloys induces the formation of a more protective passive film enriched in Nb [20].…”

Section: Resultscontrasting

confidence: 56%

Formation and biocorrosion behavior of Zr-Al-Co-Nb bulk metallic glasses

Huang

Pang

et al. 2012

Chin. Sci. Bull.

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Ni-and Cu-free Zr-Al-Co-Nb glassy alloys with different Nb and Co contents were synthesized by melt spinning and copper mold casting. The effects of Nb addition to partially replace Co in the Zr 55 Al 20 Co 25 glassy alloy on the glass-forming ability, thermal properties, in-vitro biocorrosion behavior and surface wettability of the metallic glasses were investigated. Although addition of Nb up to 5 at.% slightly decreased the supercooled liquid region and the glass-forming ability (GFA), the alloys could be casted in a bulk glassy rod form with diameters up to 3 mm. The Zr-Al-Co-Nb glassy alloys were spontaneously passivated with low passive current densities in phosphate buffered saline and Hanks' solution. Substitution of "toxic" Co by Nb is effective in improved the corrosion resistance of the Zr-Al-Co glassy alloy. Water contact angle measurements showed that Nb addition increased the hydrophilicity of the glassy alloys, which may enhance cell adhesion of the alloys in biomedical applications. Because of the lack of long-range atomic order, Zr-based bulk metallic glasses (BMGs) exhibit superior strength, high elastic strain limits and fatigue endurance limits, relatively low Young's modulus, and excellent wear and corrosion resistance [1][2][3][4][5], which attracted attention in biomedical applications. However, toxic elements such as nickel and copper are often included in Zr-based metallic glasses to achieve high glass-forming ability (GFA), which are thought to impair cellular metabolism [6]. In recent years, many efforts have been made to remove these elements from Zr-based BMGs to further improve their biocompatibility. (x = 2.5 at.% and 5 at.%) metallic glasses have been developed, and addition of Nb were found to enhance their resistance to pitting corrosion in 3 mass% NaCl solution [20]. From the viewpoint of biomedical engineering, Nb is recognized as a highly biocompatible element. In the quaternary Zr-Al-Co-Nb alloys, Co is more cytotoxic than Al, and excessive amounts of Co or prolonged exposure to Co may result in Co poisoning [21][22][23]. Therefore, rather than substitution of Al with Nb as in the previous study [20], substitution of Co with Nb could further improve the biocompatibility of the alloys. In consideration of potential medical applications, the GFA and in vitro biocorrosion behavior of Zr 55 Al 20 Co 25x Nb x glassy alloys were investigated in the present work. Surface wettability of the

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Section: Resultscontrasting

confidence: 56%

Formation and biocorrosion behavior of Zr-Al-Co-Nb bulk metallic glasses

Huang

Pang

et al. 2012

Chin. Sci. Bull.

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“…5b) also can enhance their stability. Surface roughness can lower wettability and leads to higher hydrophobicity [22,23], improving the corrosion resistance of metallic glasses [24].…”

Section: The High Stability Of the Ab-amorphous Ironmentioning

confidence: 99%

Facile preparation of amorphous iron nanoparticles filled alginate matrix composites with high stability

Huang

et al. 2016

Composites Science and Technology

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“…The contact angle of water on 316L stainless steel substrates was 95.3°, and on the TFMG coated substrate, it displayed an angle of 116.9°indicating better hydrophobic properties. A hydrophobic surface has lower surface energy than a hydrophilic surface [50]. Hydrophobicity is affected by nanolevel characteristics such as structure, chemical composition and their alignment and homogeneity of the material [51].…”

Section: Biocompatibility Testsmentioning

confidence: 99%

In vitro corrosion and biocompatibility screening of sputtered Ti40Cu36Pd14Zr10 thin film metallic glasses on steels

Subramanian

2015

Materials Science and Engineering: C

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Correlation between corrosion performance and surface wettability in ZrTiCuNiBe bulk metallic glasses

Abstract: Field emission microscopy of the cluster and subcluster structure of a Zr-Ti-Cu-Ni-Be bulk metallic glass Low Temp.Effects of relaxation on glass transition and crystallization of ZrTiCuNiBe bulk metallic glass

Cited by 34 publications

References 11 publications

Formation and biocorrosion behavior of Zr-Al-Co-Nb bulk metallic glasses

Formation and biocorrosion behavior of Zr-Al-Co-Nb bulk metallic glasses

Facile preparation of amorphous iron nanoparticles filled alginate matrix composites with high stability

In vitro corrosion and biocompatibility screening of sputtered Ti40Cu36Pd14Zr10 thin film metallic glasses on steels

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