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
Published:
15th September 2021
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
25 views / 12 downloads
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.

Scroll to Top