Study of the mechanical properties of the hot dip galvanized steel and galvalume®

Coni, N.; Gipiela, Manolo Lutero; D'Oliveira, Ana Sofia; Marcondes, Paulo Victor Prestes

doi:10.1590/s1678-58782009000400006

Cited by 27 publications

(20 citation statements)

References 12 publications

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“…The process of galvanizing sheet iron was developed simultaneously in France and England in 1837. The methods employed a "hot dipping" process to coat sheet iron with Zn (Coni, et al, 2009). Like tinplate, early galvanized metals were hand dipped.…”

Section: Galvanizingmentioning

confidence: 99%

A Tracking Review on Non Arc Melting Processes for Improved Surface Properties in Metallic Materials

2021

CMR

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Most metallic materials lack the adequate surface characteristics to satisfactorily perform intended service functions. In such instance, the surface properties are modified by altering the chemistry, structure and/topology of the top surface of the surface via modification techniques. There exists wide options of techniques for modifying the surface properties and these are well documented in the literature. However, these techniques have different scientific underpinnings controlling them such that it is difficult to use a single mechanism to characterize the techniques. Arising from this, it is imperative that a holistic understanding of the various processes is provided. Therefore, in this paper, research status on the wide range of non-melting technique for surface modification is presented. The presentation discusses the investigation conducted on the various nonsurface melting techniques and provides a comparison across the techniques. Recent developments in these techniques are equally presented. Existing challenges and emerging trends in the field are also highlighted. .

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Section: Galvanizingmentioning

confidence: 99%

A Tracking Review on Non Arc Melting Processes for Improved Surface Properties in Metallic Materials

2021

CMR

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“…Se han realizado extensas investigaciones sobre el comportamiento mecánico y mecanismos de fallas de recubrimientos de zinc sobre aceros [13], [14], [16], [17], [18], [19]. El comportamiento mecánico de los recubrimientos de zinc, se rige principalmente por su microestructura y la adhesión del recubrimiento al sustrato de acero.…”

Section: Propiedades Mecánicas De Los Recubrimientos Galvanizadosunclassified

“…Se han comparado las propiedades mecánicas de un acero con galvanizado tradicional y un acero recubierto con Galvalume® [16]. El estudio se realizó a través de ensayos de tracción de muestras de grado comerciales, con recubrimiento y después de la eliminación de este, con el objetivo de evaluar las propiedades mecánicas (resistencia a la tracción, límite elástico, alargamiento total y coeficiente de endurecimiento).…”

Section: Propiedades Mecánicas De Los Recubrimientos Galvanizadosunclassified

“…En este estudio se llegó a la conclusión de que los aceros con recubrimientos de Galvalume (55%Al-Zn) mostraron un mayor rendimiento y resistencia a la tracción y menor alargamiento y coeficiente de endurecimiento, comparado con el acero recubierto de zinc puro. En ambos productos el recubrimiento mostró una influencia significativa en las propiedades mecánicas del acero recubierto [16].…”

Section: Propiedades Mecánicas De Los Recubrimientos Galvanizadosunclassified

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Efecto de la composición química en el comportamiento mecánico de recubrimientos galvanizados por inmersión en caliente: una revisión

Rico

Carrasquero

2017

ings

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En los últimos años se ha generado un amplio interés en la investigación de los recubrimientos galvanizados, modificándolos con el fin de mejorar el desempeño en condiciones de servicio. Estas modificaciones buscan una mejora significativa en las propiedades del recubrimiento galvanizado, bien sea en la resistencia a la corrosión, en la soldabilidad o en las propiedades mecánicas. Las exigencias generadas por las múltiples aplicaciones de estos recubrimientos, donde el sustrato recubierto es sometido a deformaciones plásticas (estampado, doblado y laminado), requieren de mayor ductilidad de los recubrimientos. Por esto se han desarrollado composiciones químicas de los baños de inmersión, logrando modificar considerablemente la microestructura de los recubrimientos y por ende sus propiedades mecánicas. Este trabajo tiene como objetivo realizar una revisión bibliográfica sobre la composición química de los baños de inmersión, su influencia en la microestructura y técnicas utilizadas para determinar la ductilidad y adherencia en recubrimientos galvanizados por inmersión en caliente.

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“…A reaction between the iron in the steel and the zinc produces some intermetallic layers, which create a barrier with the environment and cathodically protect the steel. A coating is formed that provides protection for both the inside and outside of the pieces, not only As a result, the standard specifications (ASTM A924 and EN10142) calculate the yield and tensile strengths for hot-dip coated steel using the base steel thickness only [20]. Although pre-galvanizing countermeasures should be considered to avoid cases of brittle cracking resulting from hot-dip galvanizing on cold-formed tubes [21,22], when the process is carried out correctly, this embrittlement effect has been found to be negligible, even in hot-dip galvanized welded joints submitted to fatigue loads [23].…”

Section: Introductionmentioning

confidence: 99%

The Resistance of Welded Joints of Galvanized RHS Trusses with Different Vent Hole Geometries

et al. 2019

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A worldwide-accepted technique to protect steel lattice girders with welded hollow sections against corrosion is the hot-dip galvanizing process. In this process, vent holes are required in braces to fill the inner part protecting them from corrosion, to allow the immersion of the structure in the zinc bath and to recover the excess fluid after the bath. The cross-section reduction due to the vent hole could lead to a decrease in the effective brace resistance; this is not easily quantified, because there are neither prescriptions nor recommendations in the design codes to assess this effect. Therefore, the hollow structural sections could be underutilized due to doubts regarding the safety of this type of joint. This research was conducted in order to categorize different geometries and positions of vent holes in order to determine the best in terms of joint efficiency. A validated finite element model considering welds on lattice girders joints was extended to take into account different vent hole shapes. This research concludes that the presence of ventilation holes such as the ones considered in this study does not significantly affect the joint resistance, and that all the analyzed hole shapes could be proposed as a valid solution for machining vent holes. The conclusions drawn up from this work could be useful for structural steel designers, providing them with valuable design recommendations.

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Study of the mechanical properties of the hot dip galvanized steel and galvalume®

Abstract: Study of the Mechanical Properties of the Hot Dip Galvanized Steel and Galvalume

Cited by 27 publications

References 12 publications

A Tracking Review on Non Arc Melting Processes for Improved Surface Properties in Metallic Materials

A Tracking Review on Non Arc Melting Processes for Improved Surface Properties in Metallic Materials

Efecto de la composición química en el comportamiento mecánico de recubrimientos galvanizados por inmersión en caliente: una revisión

The Resistance of Welded Joints of Galvanized RHS Trusses with Different Vent Hole Geometries

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