Influence of Alloying Elements in Zinc Melts on the Structure of Layers Obtained by Galvanizing
Keywords:
coating layer, optical microscopy, X-ray fluorescence, Zn-SnPb-Bi-Ni alloy, galvanizing
Abstract
Zinc melts has been alloyed, in various proportions and combinations, with Bi, Sn, Ni, Pb. Depending on the characteristics of the alloying elements, the alloying technology of the zinc bath was established. To determine the degree of homogenization of the melt, samples were taken for metallographic analyses and chemical composition. In zinc alloyed melts were coated steel strips with low carbon. The layers obtained were analyzed in cross-section to determine the influence of the alloying elements on the Zn-Fe alloys from the support/zinc interface and on the thickness and structure of the phase ɳ (zinc). The chemical composition was determined by X-ray fluorescence and microstructure analysis by optical microscopy.
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[3]. Radu T., Balint L., Balint S., The alloys Zn-Al used for protection of sheet steel, Analele Universităţii “Dunărea de Jos” din Galaţi, Fascicula IX, Metalurgie şi Ştiinţa Materialelor, p. 54-60, ISSN 1453-083 X, 2003.
[4]. ***, https://www.researchgate.net/publication/222157292.
[5]. Shukla S. K., Deepa M., Santos h Kumar, Effect of Mg Addition (in Zinc Bath) on Galvanized Sheet quality, International Journal of Materials Engineering, 2(6), p. 105-111, DOI: 10.5923/j.ijme.20120206.05, 2012.
[6]. Tamara Radu, Florentina Potecasu, Maria Vlad, Research on obtaining and characterization of zinc micro-alloyed with bismuth coatings, Metalurgia International no. 1, ISSN 1582-2214, p. 44-48, 2011.
[7]. Pistofidis N., Vourlias G., Pavlidou E., Stergioudis G., Effect of Ti, Ni and Bi addition to the corrosion resistance of Zn hot-dip galvanized coatings, Journal of optoelectronics and advanced materials, vol. 9, no. 6, p. 1653, 2007.
[8]. Reumont G., Perrot P., Foct J., Thermodynamic study of the galvanizing process in a Zn – 0,1 % Ni bath, Journal of Materials Science 33, p. 4759-4768, 1998.
[9]. Lewis G. P., Pederson J., Optimizing the Ni-Zn process for hot dip galvanizing, Cominco LTD., 1998.
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[12]. Caizhen Yao, See Leng Tay, Ji Hyun Yang, Tianping Zhu, Wei Gao, Hot Dipped Zn-Al-Mg-Cu Coating with Improved Mechanical and Anticorrosion Properties, Int. J. Electrochem. Sci., 9, p. 7083-7096, 2014.
[13]. Min-Suk Oh, Sang-Heon Kim, Su-Young Kim, Tae-Chul Kim and Jong-Sang Kim, Effect of coating composition on microstructural properties and corrosion resistance of Zn-Mg-Al alloy coated steel sheets, METAL 2014, May 21st-23rd, Brno, Czech Republic, EU, 2014.
[14]. Commenda C., Pühringer J., Microstructural characterization and quantification of Zn–Al–Mg surface coatings, Materials Characterization, vol. 61, issue 10, p. 943-951, 2010.
Published
2018-12-15
How to Cite
1.
RADU T, POTECAȘU F. Influence of Alloying Elements in Zinc Melts on the Structure of Layers Obtained by Galvanizing. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Dec.2018 [cited 25Apr.2024];41(4):10-4. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2754
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