Evaluation of Mechanical Properties in of Double-Dip Galvanized Coatings on Carbon Steel
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Published:
Jun 28, 2019
Keywords:
Microcrack, double-dip, galvanized coatings
Main Article Content
Abstract
Little is known about the operational conditions, the microstructure and properties of the coatings manufactured by hot double-dip. The objective of this work is to evaluate the mechanical properties of Zn / Zn-5%Al coatings applied by the hot double-dip technique, varying the immersion times in liquid baths. For the evaluation, Vickers microhardness profiles and bending tests were made. The microhardness profiles for different immersion times show similarities, exhibiting great heterogeneity due to the microstructural characteristics. It is observed that increasing the immersion time decreases the critical angle, and the immersion time does not significantly influence the density of confined and unconfined cracks. It is concluded that the ductility of the coatings is influenced by their total thickness, and possibly by the thickness of the different areas and residual stresses, with the samples being coated for a 60 s immersion time, which present better behavior in the bending test.
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Scientific Paper
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References
[1] R. Parisot, S. Forest, A. Pineau, F. Grillon, X. Demonet, and J.-M. Mataigne, “Deformation and damage mechanisms of zinc coatings on hot-dip galvanized steel sheets: Part i. deformation modes,” Metallurgical and Materials Transactions A, vol. 35, no. 3, pp. 797–811, Mar 2004. [Online]. Available: https://doi.org/10.1007/s11661-004-0007-x
[2] E. Tzimas and G. Papadimitriou, “Cracking mechanisms in high temperature hot-dip galvanized coatings,” Surface and Coatings Technology, vol. 145, no. 1, pp. 176–185, 2001. [Online]. Available:
https://doi.org/10.1016/S0257-8972(01)01323-8
[3] V. Kuklík and J. Kudlácek, “2 - hot-dip galvanizing,” in Hot-Dip Galvanizing of Steel Structures. Boston: Butterworth-Heinemann, 2016, pp. 7–16. [Online]. Available: https://doi.org/10.1016/B978-0-08-100753-2.00002-1
[4] A. Marder, “The metallurgy of zinc-coated steel,” Progress in Materials Science, vol. 45, no. 3, pp. 191–271, 2000. [Online]. Available: https://doi.org/10.1016/S0079-6425(98)00006-1
[5] Y. Rico and E. J. Carrasquero, “Microstructural evaluation of double-dip galvanized coatings on carbon steel,” MRS Advances, vol. 2, no. 62, pp. 3917–3923, 2017. [Online]. Available: https://doi.org/10.1557/adv.2017.608
[6] S. Ploypech, P. Jearanaisilawong, and Y. Boonyongmaneerat, “Influence of thickness of intermetallic layers on fracture resistance of galvanized coatings,” Surface and Coatings Technology, vol. 223, pp. 1–5, 2013. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2013.02.017
[7] ASTM, ASTM E290 - 14 Standard Test Methods for Bend Testing of Material for Conshohocken, PAASTM Std., 2014. [Online]. Available: http://bit.ly/2ZHgBvY
[8] Y. Rico O and E. Carrasquero, “Efecto de la composición química en el comportamiento mecánico de recubrimientos galvanizados por inmersión en caliente: una revisión,” INGENIUS, no. 18, pp. 30–39, 2017. [Online]. Available: https://doi.org/10.17163/ings.n18.2017.04
[9] ASTM, ASTM A123 / A123M-17, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products, ASTM International, West Conshohocken, PA Std., 2017. [Online]. Available: http://bit.ly/2N4adgP
[10] C. E. Jordan and A. R. Marder, “Fe-Zn phase formation in interstitial-free steels hot-dip galvanized at 450 °C: Part i 0.00 wt% Al-Zn baths,” Journal of Materials Science, vol. 32, no. 21, pp. 5593–5602, Nov 1997. [Online]. Available: https://doi.org/10.1023/A:1018680625668
[11] P. Pokorny, J. Kolisko, L. Balik, and P. Novak, “Reaction kinetics of the formation of intermetallic Fe-Zn during hot - dip galvanizing of steel,” Metallurgy, vol. 55, no. 1, pp. 111–114, 2016. [Online]. Available: http://bit.ly/2XyXZAU
[12] S. Ploypech, Y. Boonyongmaneerat, and P. Jearanaisilawong, “Crack initiation and propagation of galvanized coatings hot-dipped at 450 °C under bending loads,” Surface and Coatings Technology, vol. 206, no. 18, pp. 3758–3763, 2012. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2012.03.029
[13] M. Dutta, A. K. Halder, and S. B. Singh, “Morphology and properties of hot dip Zn-Mg and ZnMg-Al alloy coatings on steel sheet,” Surface and Coatings Technology, vol. 205, no. 7, pp. 2578–2584, 2010. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2010.10.006
[14] N. Parvini Ahmadi and E. Rafiezadeh, “Effect of aluminum on microstructure and thickness of galvanized layers on low carbon silicon-free steel,” International Journal of Iron & Steel Society of Iran, vol. 6, no. 1, pp. 25–29, 2009. [Online]. Available: http://bit.ly/2ZBLLVh
[15] D. R. Raut and S. H. Poratkar, “Study the effect of aluminum variation on hardness & aluminum loss in Zn-Al alloy,” International Journal of Modern Engineering Research (IJMER), vol. 3, no. 2, pp. 884–887, 2013. [Online]. Available: http://bit.ly/2IxBPXc
[16] ASM, “Surface engineering,” ASM Interenational, 2002. [Online]. Available: http://bit.ly/2KD2RyT
[2] E. Tzimas and G. Papadimitriou, “Cracking mechanisms in high temperature hot-dip galvanized coatings,” Surface and Coatings Technology, vol. 145, no. 1, pp. 176–185, 2001. [Online]. Available:
https://doi.org/10.1016/S0257-8972(01)01323-8
[3] V. Kuklík and J. Kudlácek, “2 - hot-dip galvanizing,” in Hot-Dip Galvanizing of Steel Structures. Boston: Butterworth-Heinemann, 2016, pp. 7–16. [Online]. Available: https://doi.org/10.1016/B978-0-08-100753-2.00002-1
[4] A. Marder, “The metallurgy of zinc-coated steel,” Progress in Materials Science, vol. 45, no. 3, pp. 191–271, 2000. [Online]. Available: https://doi.org/10.1016/S0079-6425(98)00006-1
[5] Y. Rico and E. J. Carrasquero, “Microstructural evaluation of double-dip galvanized coatings on carbon steel,” MRS Advances, vol. 2, no. 62, pp. 3917–3923, 2017. [Online]. Available: https://doi.org/10.1557/adv.2017.608
[6] S. Ploypech, P. Jearanaisilawong, and Y. Boonyongmaneerat, “Influence of thickness of intermetallic layers on fracture resistance of galvanized coatings,” Surface and Coatings Technology, vol. 223, pp. 1–5, 2013. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2013.02.017
[7] ASTM, ASTM E290 - 14 Standard Test Methods for Bend Testing of Material for Conshohocken, PAASTM Std., 2014. [Online]. Available: http://bit.ly/2ZHgBvY
[8] Y. Rico O and E. Carrasquero, “Efecto de la composición química en el comportamiento mecánico de recubrimientos galvanizados por inmersión en caliente: una revisión,” INGENIUS, no. 18, pp. 30–39, 2017. [Online]. Available: https://doi.org/10.17163/ings.n18.2017.04
[9] ASTM, ASTM A123 / A123M-17, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products, ASTM International, West Conshohocken, PA Std., 2017. [Online]. Available: http://bit.ly/2N4adgP
[10] C. E. Jordan and A. R. Marder, “Fe-Zn phase formation in interstitial-free steels hot-dip galvanized at 450 °C: Part i 0.00 wt% Al-Zn baths,” Journal of Materials Science, vol. 32, no. 21, pp. 5593–5602, Nov 1997. [Online]. Available: https://doi.org/10.1023/A:1018680625668
[11] P. Pokorny, J. Kolisko, L. Balik, and P. Novak, “Reaction kinetics of the formation of intermetallic Fe-Zn during hot - dip galvanizing of steel,” Metallurgy, vol. 55, no. 1, pp. 111–114, 2016. [Online]. Available: http://bit.ly/2XyXZAU
[12] S. Ploypech, Y. Boonyongmaneerat, and P. Jearanaisilawong, “Crack initiation and propagation of galvanized coatings hot-dipped at 450 °C under bending loads,” Surface and Coatings Technology, vol. 206, no. 18, pp. 3758–3763, 2012. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2012.03.029
[13] M. Dutta, A. K. Halder, and S. B. Singh, “Morphology and properties of hot dip Zn-Mg and ZnMg-Al alloy coatings on steel sheet,” Surface and Coatings Technology, vol. 205, no. 7, pp. 2578–2584, 2010. [Online]. Available: https://doi.org/10.1016/j.surfcoat.2010.10.006
[14] N. Parvini Ahmadi and E. Rafiezadeh, “Effect of aluminum on microstructure and thickness of galvanized layers on low carbon silicon-free steel,” International Journal of Iron & Steel Society of Iran, vol. 6, no. 1, pp. 25–29, 2009. [Online]. Available: http://bit.ly/2ZBLLVh
[15] D. R. Raut and S. H. Poratkar, “Study the effect of aluminum variation on hardness & aluminum loss in Zn-Al alloy,” International Journal of Modern Engineering Research (IJMER), vol. 3, no. 2, pp. 884–887, 2013. [Online]. Available: http://bit.ly/2IxBPXc
[16] ASM, “Surface engineering,” ASM Interenational, 2002. [Online]. Available: http://bit.ly/2KD2RyT