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FACTORS INFLUENCING FORMABILITY, STRUCTURE AND MECHANICAL PROPERTIES OF HIGH ALLOY HEAT RESISTANCE STEEL

1 GREGER Miroslav
Co-authors:
1 KAWULOK Rostislav 2 PETRŽELA Jiří 2 LÁSZLÓ Vladimír 2 KWARTENG Oskar 2 JUHAS Miroslav 2 SUŠOVSKÝ Michal 3 KANDER Ladislav 1 DLUGOŠ Ivan
Institutions:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU miroslav.greger@vsb.cz
2 VÍTKOVICE – HEAVY MACHINERY a.s., Ostrava, Czech Republic, EU, jiri.petrzela@vitkovice.cz
3 MATERIÁLOVÝ A METALURGICKÝ VÝZKUM OSTRAVA, Ostrava, Czech Republic, EU, ladislav.kander@MMV.cz
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:
360-363
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:
436 views / 173 downloads
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Abstract

High alloy heat resistance steels based on 12% Cr content are characterized by specific structure and properties, which can substantially complicate technological procedure of their forming. These 12 % Cr based steel are characterized by increased resistance to deformation that affects-their formability significantly, quit narrow interval of forging temperatures, non-uniform formability and high sensitivity to stresses. Paper deals briefly with effect of various factors on formability, microstructure and mechanical properties. Effect of some chemical elements, grain size and volume of delta ferrite is discussed and compared. Effect of forming temperature is also discussed.

Keywords: Heat resistance steel, forging temperature, structure

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