Mechanical Characteristics of Ductile Iron Determined in an Original Modified Low Cycle test

• Autorzy: Maj M. , Pietrzak K. , Klasik A.

Identyfikatory

DOI

10.24425/afe.2019.129625

• Języki publikacji: EN

Abstrakty

EN

The results presented in this article are part of the research on fatigue life of various foundry alloys carried out in recent years in the Lukasiewicz Research Network – Institute of Precision Mechanics and AGH University of Science and Technology, Faculty of Foundry Engineering. The article discusses the test results obtained for the EN-GJS-600-3 cast iron in an original modified low-cycle fatigue test (MLCF), which seems to be a beneficial research tool allowing its users to evaluate the mechanical properties of materials with microstructural heterogeneities under both static and dynamic loads. For a comprehensive analysis of the mechanical behaviour with a focus on fatigue life of alloys, an original modified low cycle fatigue method (MLCF) adapted to the actually available test machine was used. The results of metallographic examinations carried out by light microscopy were also presented. From the analysis of the results of the conducted mechanical tests and structural examinations it follows that the MLCF method is fully applicable in a quick and economically justified assessment of the quality of ductile iron after normalizing treatment.

Słowa kluczowe

EN

iron; mechanical properties; microstructure

PL

żelazo; właściwości mechaniczne; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 4
• Strony: 27--32
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Maj M.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Cracow, Poland

autor

Pietrzak K.

• Lukasiewicz Research Network – Institute of Precision Mechanics, Warsaw, Poland

autor

Klasik A.

• Motor Transport Institute, Warsaw, Poland

Bibliografia

• [1] Piaskowski, J., Jankowski, A. (1974). Ductile iron. Warsaw: WNT. (in Polish).
• [2] Dobrzański A. i in. (2002). The basics of materials science and metallurgy. Gliwice- Warsaw: WNT. (in Polish).
• [3] Di Cocco, V. & Iacoviello, F. (2015). Pearlitic ductile cast irons: fatigue initiation micromechanism. Procedia Engineering. 109, 465-472.
• [4] Iacoviello, F., Di Cocco, V. & Rossi, A. (2013). Pearlitic ductile cast iron: damaging micromechanisms at crack tip. Frattura ed Integrità Strutturale. 25, 102-108.
• [5] Germann, H., Starke, P., Kerscher, E. & Eifler, D. (2010). Fatigue behaviour and lifetime calculation of the cast irons EN-GJL-250, EN-GJS-600 and EN-GJV-400. Procedia Engineering. 2, 1087-1094.
• [6] Bubenko, L., Konečná, R. & Nicoletto, G. (2009). Observation of fatigue crack paths in nodular cast iron and ADI microstructures. Materials Engineering. 16, 13-18.
• [7] Čanžar, P., Tonković, Z. & Kodvanj, J. (2012). Microstructure influence on fatigue behaviour of nodular cast iron. Materials Science & Engineering. A 556, 88-99.
• [8] Cavallini, M., Di Bartolomeo, O. & Iacoviello, F. (2008). Fatigue crack propagation damaging micromechanisms in ductile cast irons. Engineering Fracture Mechanics. 75, 694-704.
• [9] Ma, Y., Wang, X. & An, I. (2012). Fatigue Life Prediction of Ductile Iron Based on DE-SVM Algorithm. Physics Procedia. 33, 1309-1315.
• [10] Wu, X., Quan, G., Macneil, R., Zhang, Z. & Sloss, C. (2014). Failure Mechanisms and Damage Model of Ductile Cast Iron Under Low-Cycle Fatigue Conditions. Metallurgical and Materials Transactions. A, 2014-5097.
• [11] Kocańda, S., Kocańda, A. (1989). Low cycle fatigue strength of metals. Warsaw: PWN. (in Polish).
• [12] Maj, M. (2012). Fatigue life of selected casting alloys. Katowice-Gliwice: Archives of Foundry Engineering. (in Polish).
• [13] Maj, M., Moćko, W., Pietrzak, K. & Klasik, A. (2009). Methodological conditionings of a modified low cycle fatigue method of tempered 41Cr4 steel in comparison to some other materials. Archives of Foundry Engineering. 9(4), 129-134.
• [14] Kęsy, B.K. (1990). Microstructure as arrangement of unitary phase parts and stereological parameters Proceedings of 3rd Int. Conference on Stereology In Materials Science, Szczyrk, pp. 226 -231.
• [15] Pietrzak, K., Klasik, A., Maj, M., Wojciechowski, A. & Sobczak, N. (2017). Microstructural Aspects of Fatigue Parameters of Lead-Free Sn-Zn Solders with Various Zn Content. Archives of Foundry Engineering. 17(1), 131-136.
• [16] Karamara, A. (1971). Determination of the form strength of castings based on the accommodation limit. Research of the Metallurgical and Foundry Commission. PAN - Department in Krakow. „Metalurgia” 17, str. 7.
• [17] Maj M. (1984). Criteria of exploitation strength of cast iron castings based on mechanical properties of materials . DSc thesis Kraków 1984.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)