Zinc Alloys
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Glycerol Effect on the Corrosion Resistance and Electrodeposition Conditions in a Zinc Electroplating Process
Zinc electrodeposition is an economical process of Zn coating compared to conventional galvanic process. The galvanizing process is used in various industrial sectors to protect ferrous alloys during the corrosion process. In buildings, the galvanizing process is widely used to coat mortar protective screens. The electrodeposition of zinc has a relatively lo
Mat. Res.. Publicado em: 19/08/2019
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2. Corrodibility and Adherence of Reinforced Concrete Rebars Electroplated with Zinc and Zinc-Nickel Alloys
Reinforced concrete is the main structural material used in the world in the construction of bridges, roads and commercial and residential buildings. One effective method for preventing corrosion of steel reinforcement is the application of galvanic coatings to the reinforcement itself. The present study evaluated the performance of three groups of reinforci
Mat. Res.. Publicado em: 15/07/2019
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3. Performance and Surface Integrity of Wire Electrical Discharge Machining of Thin Ti6al4v Plate Using Coated and Uncoated Wires
Wire Electrical Discharge Machining (WEDM) is one of the most important production technologies to manufacture very accurate small components and tools on any electrical conductive material. Titanium and its alloys have been widely used in automobile and aerospace industry as well as in medical engineering field. Small components and tools with complex geome
Mat. Res.. Publicado em: 03/06/2019
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4. Movimiento de las interfases durante la solidificación horizontal de aleaciones estaño-zinc
ABSTRACT Solidification processing is one of the important routes to produce materials, especially metals and alloys. The parameters for the transformation from liquid to solid, such as the temperature gradient, the growth rate, the cooling rate, the interphase velocity, vary from process to process and in one process also as a function of time and space. Th
Matéria (Rio J.). Publicado em: 19/07/2018
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5. Band Structure, Charge Distribution and Optical Properties of AlPxSb1-x Ternary Semiconductor Alloys
The present contribution studies on the composition dependence of the electronic and optical properties of the zinc-blende alloy system AlPxSb1-x. The calculations are performed using a pseudopotential approach under the virtual crystal approximation. Features such as electronic band structure, energy band-gaps, refractive index, dielectric constants and val
Mat. Res.. Publicado em: 21/05/2018
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6. Friction Stir Welding of Shipbuilding Steel with Primer
Abstract Friction Stir Welding has proven its merits for welding of aluminium alloys and is focused in expanding its material database to steel and titanium and also to assess new joint configurations. The use of welded structures in shipbuilding industry has a long tradition and continuously seeks for innovation in terms of materials and processes maintaini
Soldag. insp.. Publicado em: 2016-03
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7. Effect of Calcium on Structure, Phase Composition and Hardening of Al-Zn-Mg Alloys Containing up to 12wt.%Zn
The influence of calcium on structure and phase composition of the aluminum alloys, containing additions of zinc up to 12 wt.% and magnesium (3.5 wt.%) was studied. The increase of Zn content leads to formation of Al4Ca primary crystals at lower concentrations of calcium. Zinc is distributed between aluminum solid solution and intermetalic phases (Ca-contain
Mat. Res.. Publicado em: 03/11/2015
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8. Solidificação transitória de ligas monofásica e hipoperitética do sistema Zn-Cu / Transient solidification of monophasic and hypoperitectic alloys of the Zn-Cu system
O desenvolvimento de microestruturas durante a solidificação de ligas peritéticas tem muito interesse nos últimos anos, em função da versatilidade, em termos de aplicação, de muitas ligas de sistemas peritéticos. Na solidificação de ligas peritéticas binárias em equilíbrio, o líquido durante o resfriamento ao atingir a temperatura peritética
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
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9. Crescimento inicial de espécies arbóreas em substrato impacto por resíduo industrial alcalino rico em zinco
xiv Abstract The industrial production of zinc alloys generates large amounts of chemical waste. An area of approximately 16 hectares previously designed for the reception of industrial waste was selected as a target for an environmental recovery project, objective of this work. The results showed a significant difference between the control and contaminated
Publicado em: 2010
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10. Estudo espectroeletroquímico e eletroanalítico de banhos de eletrodeposição de ligas prata-cobre e pratazinco e caracterização morfológica, química e estrutural dos filmes / Electroanalytical and spectroelectrochemical study of electrodeposition baths of silver-copper and silver-zinc alloys and morphological, chemical, and structural characterization of the films
The purpose of this thesis was to establish the conditions for silver-copper and silver-zinc electrodeposition from ammonium hydroxide and thiourea solutions, respectively, and to investigate the effect of added EDTA and HEDTA on the electrodeposition process. In this way, the influence of solution composition and electrodeposition parameter (deposition pote
Publicado em: 2008
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11. Electropedopisition and characterization the SnZn alloy on glass carbon / EletrodeposiÃÃo e caracterizaÃÃo de Ligas SnZn sobre carbono vÃtreo
Eutectic SnPb solder alloys have widely been used in the assembly of modern electronic devices. However, because lead and its compounds are known to be toxic to the human body and cause serious environmental problems. A substitute weld would be a alloy binary SnZn, theme of study of this work. The voltammetry results suggest that SnZn in both electroplated a
Publicado em: 2006
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12. Hardness analysis and morphological characterization of copper-zinc alloys produced in pyrophosphate-based electrolytes
In this work, copper-zinc alloy coatings on mild steel substrates were obtained in nontoxic pyrophosphate-based electrolytes, at room temperature and under continuous current. The effects of bath composition and current density on the hardness of the coatings, as well as on their morphologies, were evaluated. The results showed that the electrolyte compositi
Materials Research. Publicado em: 2005-09