The Experts below are selected from a list of 8250 Experts worldwide ranked by ideXlab platform
Lih-sheng Turng - One of the best experts on this subject based on the ideXlab platform.
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Semi-solid casting (SSC) of Zinc Alloy nanocomposites
Journal of Materials Processing Technology, 2009Co-Authors: Marcello De Cicco, Lih-sheng TurngAbstract:An innovative casting method that combines semi-solid casting (SSC) and metal matrix nanocomposite (MMNC) technology was successfully demonstrated. The method uses the grain refining properties of the nanoparticles in the MMNC to produce slurry with the appropriate globular structure for semi-solid casting. In this way no additional material processing or mechanical agitation is necessary to achieve the desirable slurry microstructure. The grain refining attributes of the nanoparticles were shown to stem from the promotion of nucleation in the solidifying matrix Alloy. Differential scanning calorimetry (DSC) showed a reduced undercooling necessary for nucleation owing to the nucleation catalytic potency of the nanoparticles. Using this method Zinc Alloy AC43A nanocomposite with 0.5 wt.% SiC β nanoparticle additions were cast at a 30% solid fraction. The resulting castings showed increased ductility, reduced shrinkage, and increased strength compared to their monolithic liquid cast counterparts.
D. R. Gabe - One of the best experts on this subject based on the ideXlab platform.
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Conductivity measurements of some Zinc Alloy plating solutions
Plating and Surface Finishing, 1999Co-Authors: G. Guvendik, C. J. Roberts, D. R. GabeAbstract:The importance of solution conductivity as a parameter in electroplating solution design is outlined and the basis of optimization defined. New data are presented for two Zinc Alloy solutions (Zn-Fe and Zn-Mn) and the commercial significance discussed.
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Electrodeposited Zinc Alloy coatings
Corrosion Science, 1993Co-Authors: Geoffrey Wilcox, D. R. GabeAbstract:Abstract This review examines the range of Zinc Alloy electrodeposited coatings that are available as finishes for continuous steel strip and also possible replacements for electroplated cadmium. Each system is described in terms of available electrolytes, physical properties and corrosion resistance. It is apparent that Zinc-nickel, Zinc-iron and Zinc-cobalt are the most widely utilized, although Zinc-manganese, which appears to have excellent corrosion resistance, is in all probability unavailable commercially. Zinc-tin is also discussed, being recognized as another possible replacement for cadmium.
Marcello De Cicco - One of the best experts on this subject based on the ideXlab platform.
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Semi-solid casting (SSC) of Zinc Alloy nanocomposites
Journal of Materials Processing Technology, 2009Co-Authors: Marcello De Cicco, Lih-sheng TurngAbstract:An innovative casting method that combines semi-solid casting (SSC) and metal matrix nanocomposite (MMNC) technology was successfully demonstrated. The method uses the grain refining properties of the nanoparticles in the MMNC to produce slurry with the appropriate globular structure for semi-solid casting. In this way no additional material processing or mechanical agitation is necessary to achieve the desirable slurry microstructure. The grain refining attributes of the nanoparticles were shown to stem from the promotion of nucleation in the solidifying matrix Alloy. Differential scanning calorimetry (DSC) showed a reduced undercooling necessary for nucleation owing to the nucleation catalytic potency of the nanoparticles. Using this method Zinc Alloy AC43A nanocomposite with 0.5 wt.% SiC β nanoparticle additions were cast at a 30% solid fraction. The resulting castings showed increased ductility, reduced shrinkage, and increased strength compared to their monolithic liquid cast counterparts.
A R Di Sarli - One of the best experts on this subject based on the ideXlab platform.
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comparative corrosion behaviour of 55aluminium Zinc Alloy and Zinc hot dip coatings deposited on low carbon steel substrates
Corrosion Science, 1998Co-Authors: Pablo Ricardo Sere, M Zapponi, Cecilia Ines Elsner, A R Di SarliAbstract:Abstract A comparative study of the anticorrosive behaviour of 55Aluminium–Zinc-Alloy and Zinc coatings, both applied by the hot-dip process to steel, was performed using salt spray and humidity cabinet tests as well as immersion ones. Surface degradation of the coated steel was studied by SEM and EDS, whilst the corrosion products were characterised using XRD. The experimental results showed that the corrosion resistance of the 55Al–Zn Alloy coating was higher than that of Zn alone particularly in presence of chloride ions. The morphological characteristics of the corrosion products formed also differed.
Geoffrey Wilcox - One of the best experts on this subject based on the ideXlab platform.
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Electrodeposited Zinc Alloy coatings
Corrosion Science, 1993Co-Authors: Geoffrey Wilcox, D. R. GabeAbstract:Abstract This review examines the range of Zinc Alloy electrodeposited coatings that are available as finishes for continuous steel strip and also possible replacements for electroplated cadmium. Each system is described in terms of available electrolytes, physical properties and corrosion resistance. It is apparent that Zinc-nickel, Zinc-iron and Zinc-cobalt are the most widely utilized, although Zinc-manganese, which appears to have excellent corrosion resistance, is in all probability unavailable commercially. Zinc-tin is also discussed, being recognized as another possible replacement for cadmium.
