ELECTROLYTIC NICKEL-PLATING FOR SURFACE PROTECTION AGAINST HIGH-TEMPERATURE OXIDATION AND DECARBURIZATION

1 KÁŇA Josef
Co-authors:
1 RUBEŠOVÁ Kateřina 2 KREIBICH Viktor 1 MAŠEK Bohuslav
Institutions:
1 University of West Bohemia, Faculty of Mechanical Engineering, Pilsen, Czech Republic, EU
2 University of Strathclyde, Faculty of Physics, Glasgow, Scotland, United Kingdom, EU
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
398-402
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
127 views / 41 downloads
Abstract

In steel research, as well as in the manufacture of semi-finished metallurgical products and finished formed products, such as forged parts, the material is often heated to high temperatures which leads to surface oxidation and decarburization. Material-technological modelling involves the use of small-size specimens which are treated according to schedules identical to those in real-world processing. From these treated specimens, test bars are made for various mechanical tests. If severe decarburization occurs, the affected surface layer may give rise to substantially different results of mechanical testing than in a thermomechanically treated material with an intact surface. Therefore, protective barriers were sought by which formation of scale on the surface of test specimens, and decarburization in subsurface layers could be prevented. One of the available options involves depositing a coating of 10–15 micrometre thickness by electrolytic nickel-plating. By this simple and readily-available technique, very good protection was obtained for specimens exposed to high temperatures.

Keywords: surface protection, high-temperature oxidation, decarburization, Ni coating, material -technological modelling

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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