PSI - Issue 58

Alan Vaško et al. / Procedia Structural Integrity 58 (2024) 48–53

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A. Vaško et al. / Structural Integrity Procedia 00 (2019) 000–000

Mechanical tests show that austenitic nodular cast irons have worse strength and fatigue properties (lower yield strength, tensile strength, hardness and fatigue limit) but significantly better plastic properties (higher ductility and absorbed energy) compared to non-austenitic nodular cast irons. By comparing chosen austenitic nodular cast irons, nickel-manganese nodular cast iron has better strength and plastic properties, but worse hardness than nickel chromium nodular cast iron. Corrosion tests show that austenitic nodular cast irons have higher thermodynamic stability and a significantly lower corrosion rate compared to non-austenitic nodular cast irons, which results in a higher corrosion resistance of austenitic nodular cast irons. The corrosion resistance of chosen austenitic nodular cast irons is similar, but nickel chromium nodular cast iron has a slightly better corrosion resistance than nickel-manganese nodular cast iron. The mentioned austenitic nodular cast irons are suitable for various applications in sea water or other salty environments. Acknowledgements The research has been supported by the Culture and Educational Grant Agency of Ministry of Education, Science, Research and Sport of Slovak Republic, grant projects KEGA No. 009ŽU-4/2023 and 004ŽU-4/2023. References Baboian, R., 2005. Corrosion tests and standards: Application and interpretation, ASTM International, West Conshohocken, USA. Bokůvka, O., Nicoletto, G., Guagliano, M., Kunz, L., Palček, P., Nový, F., Chalupová, M., 2014. Fatigue of materials at low and high frequency loading, Edis ŽU, Žilina, Slovakia. Fischer, J., 2022. Properties and applications of Ni-resist and ductile Ni-resist alloys. A practical guide to the use of nickel-containing alloys, No. 11018, Nickel Institute, 1-62. Franke, S., 2019. Giesserei-Lexikon, Schiele & Schőn, Berlin, Germany. Hasse, S., 2008. Gefüge der Gusseisenlegierungen: Structure of cast iron alloys, Schiele & Schőn, Berlin, Germany. Inco, 2022. Nickel SG-iron – engineering properties. A practical guide to the use of nickel-containing alloys, No. 4077, Nickel Institute, 1-12. Kaňa, V., 2017. Production and properties of austenitic cast irons. Slévárenství 65 (1-2), 6-11. Kopas, P., Jakubovičová, L., Vaško, M., Handrik, M., 2016. Fatigue resistance of reinforcing steel bars. Procedia Engineering, 136, 193-197. Mansfeld, F., 2003. Electrochemical methods of corrosion testing, ASM Handbook, Vol. 13A Corrosion: Fundamentals, testing and protection, ASM International, Materials Park, USA. Otáhal, V., 2009. Nodular cast iron, Metal Casting and Foundry Consult, Brno, Czech Rep. Roberge, P. R., 2008. Corrosion engineering: Principles and practice, McGraw Hill, New York, USA. Spence, T. C., 2005. Corrosion of cast irons, ASM Handbook, Vol. 13B Corrosion: Materials, ASM International, Materials Park, USA. Stawarz, M., Nuckowski, P. M., 2022. Corrosion behavior of SiMo cast iron under controlled conditions. Materials 15, 3225. Stefanescu, D.M., 2017. Corrosion of cast irons, ASM Handbook, Vol. 1A Cast iron science and technology, ASM International, Materials Park, USA. Vaško, A., Uhríčik, M., Kuchariková, L., Tillová, E., 2018. Microstructure, mechanical and fatigue properties of SiMo- and SiCu- nodular cast irons. Procedia Structural Integrity 13, 1527-1532. Yau, T. L., 2003. Immersion testing, ASM Handbook, Vol. 13A Corrosion: Fundamentals, testing and protection, ASM International, Materials Park, USA. Röhrig, K., 2004. Austenitische Gusseisen. Konstruieren + Giessen 29 (2), 2-33. Skočovský, P., Podrábský, T., 2005. Graphitic cast irons, Edis ŽU, Žilina, Slovakia.