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INFLUENCE OF INCLUSIONS GEOMETRY ON THE FATIGUE PROPERTIES

1 STUDENY Zbynek
Co-authors:
1 POKORNY Zdenek
Institution:
1 University of Defence, Faculty of Military Technology, Brno, Czech Republic, EU, zbynek.studeny@unob.cz, zdenek.pokorny@unob.cz
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1034-1039
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
409 views / 164 downloads
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Abstract

The inclusions size in context fatigue properties of plasma nitriding steel was studied. The size of inclusion, such as geometry and location, has remarkable influence to fatigue properties of steel 41CrAlMo7-10. The samples were shaped by turning operations and subsequently grinded to prescribe values of a standard test bars. Next technological operation was heat-treatment, such as normalizing, quenching and tempering. Plasma nitriding technology as a diffusion technology used to formation of nitrided layers on surface of heat-treated steel. Plasma nitriding technology is effective method usage in practise especially due to increasing of surface hardness, corrosion resistance and fatigue strength. The samples were subjected to the fatigue bending rotation tests.

Keywords: Plasma nitriding technology, fatigue test, inclusions

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