Factores que afectan a la estructura de los recubrimientos de cinc obtenidos por inmersión

P. R. Seré; J. D. Culcasi; C. I. Elsner; A. R. Di Sarli

doi:10.3989/revmetalm.1997.v33.i6.832

Factors affecting the hot-dip zinc coatings structure

Authors

P. R. Seré Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT). CIC-CONICET
J. D. Culcasi Dpto. de Mecánica. Facultad de Ingeniería. Universidad Nacional de La Plata
C. I. Elsner Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT). CIC-CONICET
A. R. Di Sarli Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT). CIC-CONICET

DOI:

https://doi.org/10.3989/revmetalm.1997.v33.i6.832

Keywords:

Galvanized steel sheet, Hot-dip galvanizing, Microstructure, Alloy layer, Roughness, Zinc coatings

Abstract

Coating solidification during hot-dip galvanizing is a very complex process due to Al-Fe, Al-Fe-Zn and Fe-Zn intermetallic compounds development. Fe-Zn intermetallic are brittle and detrimental for the coating ductility, while the diffusion towards the surface of a segregated insoluble alloying such as antimonium causes the sheet darkness. Steel sheets of different roughness were hot-dip galvanized under different operation conditions using a laboratory scale simulator. The effect of steel roughness and process parameters upon coating characteristics were analyzed. Experimental results showed that the steel roughness affects the coating thickness, zinc grain size and texture as well as the out-bursts development, while the process parameters affects the Fe₂Al₅ morphology and antimonium segregation.

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Published

1997-12-30

How to Cite

Seré, P. R., Culcasi, J. D., Elsner, C. I., & Di Sarli, A. R. (1997). Factors affecting the hot-dip zinc coatings structure. Revista De Metalurgia, 33(6), 376–381. https://doi.org/10.3989/revmetalm.1997.v33.i6.832

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Issue

Vol. 33 No. 6 (1997)

Section

Articles

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