THE RESISTANCE OF THERMAL SHOCK OF THE 21CRMOV5-7 STEEL

1 STRADOMSKI Grzegorz
Co-authors:
1 KRUPOP Magdalena 2 JAKUBUS Aneta 1 NADOLSKI Maciej
Institutions:
1 Technical University of Czestochowa, Faculty of Production Engineering and Materials Technology, Institute of Plastic Forming Processes and Safety Engineering, Armii Krajowej 19 av., 42-200 Częstochowa, Poland,EU, gstradomski@wip.pcz.pl, magdalena.ptak@onet.pl, nadolski.maciej@wip.pcz.pl
2 The Jacob of Paradies University in Gorzów Wielkopolski, ul. Teatralna 25, 66-400 Gorzów Wielkopolski, Poland, EU, jakubusaneta@wp.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:
873-878
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:
18 views / 4 downloads
Abstract

The continuous increase in the demand for electricity, the need to increase the power and of power units, efficiency causes the development and researches of dedicated materials. These materials work in extremely harsh conditions, they must be resistant to high temperatures, sudden changes of temperature and deformation. They are also exposed to fatigue damage both mechanical and thermal. The steel grade presented in this paper is a boiler steel working in temperature ranges 500-600 ºC. Important parameters for steels of this type are high temperature mechanical properties. It is also important that a high level of properties is achieved at both elevated and room temperatures. Elements working in such conditions, including the steam turbine armour, are exposed to thermal shock what will be presented in this paper.

Keywords: Thermal shock, high temperature parameters, cracking
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