THE ASSESSMENT OF HEAT TREATMENT IMPACT ON HOT-DIP ZINC COATING STRUCTURE AND SELECTED PROPERTIES

1 SZATKOWSKA Elżbieta
Co-authors:
1 JEDRZEJCZYK Dariusz 1 SKOTNICKI Wojciech 2 WAŚ Joanna 2 JURASZ Zbigniew
Institutions:
1 University of Bielsko-Biała, 43-309 Bielsko-Biała, Willowa 2, Poland, EU, ela.szatkowska@gmail.com; djedrzejczyk@ath.bielsko.pl; wskotnicki@ath.bielsko.pl
2 BOSMAL Automotive Research and Development Institute Ltd, Sarni Stok 93, Bielsko-Biala, Poland, EU, joanna.was@bosmal.com.pll; zbigniew.jurasz@bosmal.com.pl
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
1258-1263
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
11 views / 1 download
Abstract

In the presented paper the subject related to the heat treatment (HT) of hot-dip zinc coating was initiated. Authors assumed that in the future widely understood optimization of coating HT will results in both mechanical as well as functional properties improvement. Investigations were focused on the hot-dip zinc coating deposited at industrial conditions (acc. PN-EN ISO 10684) on the Fe-C alloys surface (steel and cast iron). In the paper beside basic information: microhardness measurements, optical microscopic observation also examples of EDS after HT are enclosed. It was stated that although the applied HT results in coating hardness increase, the too high temperature level may cause coating cracking and delamination. As the processing temperature increases, the coating structure changes - the iron content in individual Zn phases increases. Zinc coating deposited on cast iron is more inhomogeneous.

Keywords: Hot-dip zinc coating, heat treatment, surface quality
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