THE EFFECT OF HEAT TREATMENT ON THE IMPACT STRENGTH OF ADI

1 GIĘTKA Tomasz
Co-authors:
1 CIECHACKI Krzysztof 2 GUMIENNY Grzegorz
Institutions:
1 Department of Materials Science and Engineering, Mechanical Engineering Faculty, University of Science and Technology, 7, prof. S. Kaliskiego Str., 85-796 Bydgoszcz, Poland, e-mail: tgietka@utp.edu.pl
2 Department of Materials Engineering and Production Systems, Technical University of Łódź, /15 Stefanowskiego Str., 90-924 Łódź, Poland
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:
159-166
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:
100 views / 29 downloads
Abstract

This publication attempts to investigate the effect of heat treatment parameters on the impact strength of ADI. Ductile iron was tempered with isothermal transformation according to two variants. Both variants of heat treatment consisted of two-stage austenitizing. Iron was cured at tA = 9500C, then gradually cooled to a temperature of the supercritical tA'= 850, or 8000C (in the latter variant). Isothermal transformation was carried out under the same conditions. Isothermal hardening was carried out at 300 or 4000C and resisting the time of from 7.5 to 240 min. During these studies, the impact energy of the sample was notched. The results were compared with values given in the standard PN EN 1564 : 2012.

Keywords: ADI, impact test, isothermal transformation, austempered parameters

© 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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