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THE INFLUENCE OF GRAPHITE INOCULANTS AND WALL THICKNESS OF THE CASTINGS FROM NODULAR GRAPHITE CAST IRON ON THE STRUCTURE AND MECHANICAL PROPERTIES

1 ROUČKA Jaromír
Co-authors:
1 KAŇA Václav 1 PERNICA Vítězslav 1 NYÉKYOVÁ Dominika 1 ZÁDĚRA Antonín
Institution:
1 Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic, EU, roucka@fme.vutbr.cz
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
108-114
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4074
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
749 views / 484 downloads
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Abstract

The research examined the influence of different kinds of graphite inoculants when casting nodular cast iron on the structure and mechanical properties of the castings. The test alloy was a nodular cast iron corresponding with the ČSN EN GJS 450 standard. The modification was done with a VM 63M alloy by a Sandwich method. A comparison was made of the inoculating effects of 3 sorts of inoculants applied by a single-stage modification. Test moulds samples of Y1-Y4 type complying with the ČSN EN 1563 standard were cast. These samples were tested for their mechanical properties using the tensile, hardness and impact tests. A metallographic evaluation of the graphite and basic metal structure was made for all the samples.

Keywords: Ductile iron, inoculation, wall thickness, structure, mechanical properties

© 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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