Publication detail
Corrosion resistance and other utility properties of selected austenitic nodular cast irons
VAŠKO, A. ZATKALÍKOVÁ, V. BELAN, J. UHRÍČIK, M. KAŇA, V.
English title
Corrosion resistance and other utility properties of selected austenitic nodular cast irons
Type
conference paper
Language
en
Original abstract
This study deals with the evaluation of corrosion resistance and other utility properties of selected austenitic nodular cast irons and their comparison with other (non-austenitic) nodular cast irons. For the investigations, two types of austenitic nodular cast iron were selected: nickel-manganese nodular cast iron EN-GJSA-XNiMn13-7 and nickel-chromium nodular cast iron EN-GJSA-XNiCr20-2. Basic mechanical properties, such as yield strength, tensile strength, elongation, absorbed energy and hardness, were evaluated using mechanical tests. The fatigue limit was determined using low-frequency fatigue tests. Corrosion properties, such as average corrosion rate, corrosion potential and corrosion current density, were determined by the exposure immersion test and the electrochemical potentiodynamic polarisation test. Both corrosion tests were performed in a 3.5% NaCl solution (to simulate seawater) at room temperature. The results of mechanical, fatigue and corrosion tests show that austenitic nodular cast irons have lower strength and fatigue properties but significantly higher plastic properties and corrosion resistance compared to non-austenitic nodular cast irons.
English abstract
This study deals with the evaluation of corrosion resistance and other utility properties of selected austenitic nodular cast irons and their comparison with other (non-austenitic) nodular cast irons. For the investigations, two types of austenitic nodular cast iron were selected: nickel-manganese nodular cast iron EN-GJSA-XNiMn13-7 and nickel-chromium nodular cast iron EN-GJSA-XNiCr20-2. Basic mechanical properties, such as yield strength, tensile strength, elongation, absorbed energy and hardness, were evaluated using mechanical tests. The fatigue limit was determined using low-frequency fatigue tests. Corrosion properties, such as average corrosion rate, corrosion potential and corrosion current density, were determined by the exposure immersion test and the electrochemical potentiodynamic polarisation test. Both corrosion tests were performed in a 3.5% NaCl solution (to simulate seawater) at room temperature. The results of mechanical, fatigue and corrosion tests show that austenitic nodular cast irons have lower strength and fatigue properties but significantly higher plastic properties and corrosion resistance compared to non-austenitic nodular cast irons.
Keywords in English
Ni-Resist, NiMn-nodular cast iron, NiCr-nodular cast iron, austenitic matrix, corrosion
Released
31.05.2024
Publisher
Elsevier
ISSN
2452-3216
Book
Procedia Structural Integrity
Number
58
Edition number
58
Pages from–to
48–53
Pages count
6
BIBTEX
@inproceedings{BUT196982,
author="Alan {Vaško} and Viera {Zatkalíková} and Viera {Zatkalíková} and Juraj {Belan} and Milan {Uhríčik} and Václav {Kaňa},
title="Corrosion resistance and other utility properties of selected austenitic nodular cast irons",
booktitle="Procedia Structural Integrity",
year="2024",
number="58",
month="May",
pages="48--53",
publisher="Elsevier",
issn="2452-3216"
}