The Structure of Coatings Obtained in a ZnAl23Si Bath by the Batch Hot Dip Method

Abstract:

In the paper the results of tests on obtaining ZnAl23Si coatings on low-silicon steel by use of the batch hot dip method have been presented. The growth kinetics of coatings obtained in a ZnAl23 bath with the content of 1% and 2% of Si has been defined. The structure has been developed, the chemical composition of particular structural components of the coating and its phase composition have been established. It has been determined that coatings obtained in the ZnAl23Si bath are continuous and they have uniform thickness. The presence of silicon in the bath allows to reduce excessive coating thickness. The coating is composed of an external layer which is formed by the bath components and of a diffusion layer of the intermetallic FeAl₃ phase.

• Periodical: Solid State Phenomena (Volume 226)
• Pages: 155-160
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.226.155
• Online since: January 2015
• Authors: Henryk Kania*
• Keywords: Corrosion Resistance, Galvanizing Bath, Hot Dip Galvanizing, Zn-Al-Si Coatings

References

[1] P. Liberski, H. Kania, P. Podolski, The structure and corrosion resistance of Zn-Al coatings obtained in batch double dip process, Physico Chemical Mechanics of Materials 5 (2006) 673-679.

[2] J. Mendala, Influence of the cooling method on the structure of 55AlZn coatings, IOP Conf. Series: Materials Science and Engineering 22 (2011) 012004.

DOI: 10.1088/1757-899x/22/1/012004

[3] J. Mendala, The influence of Si addition in 55AlZn bath on the coating structures obtained in the batch hot-dip metallization, IOP Conf. Series: Materials Science and Engineering 22 (2011) 012005.

DOI: 10.1088/1757-899x/22/1/012005

[4] H. Kania, Trendy vývoje lázní pro žárové zinkování, Konstrukce 6 (2012) 6-15.

[5] H. Kania, The structure of coatings obtained in the Zn-31Al-3Mg bath by the batch hot dip method, IOP Conf. Series: Materials Science and Engineering 35 (2012) 012003.

DOI: 10.1088/1757-899x/35/1/012003

[6] H. Kania, The Structure of Coatings Obtained in the Zn-31Al-3Mg Bath on High-Silicon Steel, Proc. of XXI Conference on Technologies and Properties of Modern Utility Materials (TPMUM 2013), Solid State Phenomena 212 (2014) 101-106.

DOI: 10.4028/www.scientific.net/ssp.212.101

[7] H. Kania, M. Bierońska, Corrosion Resistance of Zn-31AlMg Coatings Obtained by Batch Hot Dip Method, Proc. of XXI Conference on Technologies and Properties of Modern Utility Materials (TPMUM 2013), Solid State Phenomena 212 (2014) 167-172.

DOI: 10.4028/www.scientific.net/ssp.212.167

[8] H. Kania, M. Bierońska, Corrosion resistance of coatings obtained in a Zn+23Al bath with Mg additions, Ochrona przed Korozją (Protection from Corrosion) 10 (2014) 445-448.

DOI: 10.15199/40.2015.11.4

[9] H. Kania, The structure of coatings obtained in the Zn-7Al-3Mg bath by the batch hot dip method, Physico Chemical Mechanics of Materials 9 (2012) 496-500.

DOI: 10.1088/1757-899x/35/1/012003

[10] R. Michalik, Influence of solutioning on structure and mechanical properties of ZnAl22Cu3 alloy, Materials Science and Enginering Technology (Materialwissenschaft und Werkstofftechnik) 45 (5) (2014) 354-360.

[11] R. Michalik, Influence of copper on the structure and properties of the ZnAl40Cu3 alloy after heat treatment, Solid State Phenomena 212 (2014) 75-80.

DOI: 10.4028/www.scientific.net/ssp.212.75

[12] R. Michalik, The effect of modification with rare earth elements on ZnAl22Cu3 alloy structure and mechanical properties, Archives of Metallurgy and Materials 58 (2013) 49-53.

DOI: 10.2478/v10172-012-0149-6

[13] R. Michalik, Influence of environment of acid rain, on the structure of surface layer of ZnAl22Cu3 alloy, Solid State Phenomena 212 (2014) 151-156.

DOI: 10.4028/www.scientific.net/ssp.212.151

[14] R. Michalik, Influence of Si and REE on the corrosion resistance of ZnAl40Cu3 Alloy, Solid State Phenomena 212 (2014) 133-136.

DOI: 10.4028/www.scientific.net/ssp.212.133

[15] H. Kania, The influence of Si content in steel on the growth kinetics and structure of hot dip Zn-31Al-3Mg coatings, The Book of Abstracts XIV Annual Conference YUCOMAT P.S.B. 19 (2012) 85.