PSI - Issue 51

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ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 51 (2023) 129–134

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the ICSID 2022 Organizers Abstract High resistance to high and low temperatures, resistance to corrosion when exposed to salt water and alkaline media, resistance to wear, high elongation, and paramagnetism are all characteristics of austenitic nodular cast iron. However, less research has been done on the fatigue resistance of austenitic nodular cast iron. Therefore, the objective of this study is to determine the fatigue characteristics of austenitic nodular cast iron and compare them to those of different types of nodular cast iron. The nodular cast iron used in the research (EN-GJSA-XNiCr20-2) was alloyed with 20% nickel and 2% chromium to create an austenitic matrix. Light metallographic microscopy was used to examine the microstructure. A tensile test, an impact bending test, and a Brinell hardness test were used to examine the mechanical properties of the material. Fatigue tests were done under sinusoidal cyclic push pull loads at room temperature to obtain the Wöhler curve and determine the fatigue limit. The results of these tests were compared with the fatigue characteristics of nodular cast irons with different matrixes, namely ferrite-pearlitic and pearlite-ferritic nodular cast irons. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSID 2022 Organizers Keywords: Ni-Resist; NiCr-nodular cast iron; austenitic matrix; fatigue 1. Introduction According to its definition, austenitic nodular cast iron is a highly alloyed cast material with an austenitic matrix that contains nickel, manganese, and often chromium or copper to stabilize the austenitic matrix at room temperature. Carbon is present in the material in the form of graphite nodules. Specific alloying elements, primarily nickel, have a 6th International Conference on Structural Integrity and Durability (ICSID 2022) Fatigue behaviour of NiCr-type of austenitic nodular cast iron Alan Vaško a, *, Milan Uhríčik a , Juraj Belan a , Lucia Pastierovičová a , Václav Kaňa b a University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia b Brno University of Technology, Faculty of Mechanical Engineering, Deptartment of Foundry Engineering, Technická 2896/2, Královo Pole, 616 69 Brno, Czech Republic Abstract High resistance to high and low temperatures, resistance to corrosion when exposed to salt water and alkaline media, resistance to wear, high elongation, and paramagnetism are all characteristics of austenitic nodular cast iron. However, less research has been done on the fatigue resistance of austenitic nodular cast iron. Therefore, the objective of this study is to determine the fatigue characteristics of austenitic nodular cast iron and compare them to those of different types of nodular cast iron. The nodular cast iron used in the research (EN-GJSA-XNiCr20-2) was alloyed with 20% nickel and 2% chromium to create an austenitic matrix. Light metallographic microscopy was used to examine the microstructure. A tensile test, an impact bending test, and a Brinell hardness test were used to examine the mechanical properties of the material. Fatigue tests were done under sinusoidal cyclic push pull loads at room temperature to obtain the Wöhler curve and determine the fatigue limit. The results of these tests were compared with the fatigue characteristics of nodular cast irons with different matrixes, namely ferrite-pearlitic and pearlite-ferritic nodular cast irons. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSID 2022 Organizers Keywords: Ni-Resist; NiCr-nodular cast iron; austenitic matrix; fatigue 1. Introduction According to its definition, austenitic nodular cast iron is a highly alloyed cast material with an austenitic matrix that contains nickel, manganese, and often chromium or copper to stabilize the austenitic matrix at room temperature. Carbon is present in the material in the form of graphite nodules. Specific alloying elements, primarily nickel, have a 6th International Conference on Structural Integrity and Durability (ICSID 2022) Fatigue behaviour of NiCr-type of austenitic nodular cast iron Alan Vaško a, *, Milan Uhríčik a , Juraj Belan a , Lucia Pastierovičová a , Václav Kaňa b a University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia b Brno University of Technology, Faculty of Mechanical Engineering, Deptartment of Foundry Engineering, Technická 2896/2, Královo Pole, 616 69 Brno, Czech Republic

* Corresponding author. Tel.: +421-41-513 2605. E-mail address: alan.vasko@fstroj.uniza.sk * Corresponding author. Tel.: +421-41-513 2605. E-mail address: alan.vasko@fstroj.uniza.sk

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSID 2022 Organizers 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the ICSID 2022 Organizers

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