Publication detail

CORROSION RESISTANCE OF AUSTENITIC NiMn-NODULAR CAST IRON IN NACL SOLUTION

VAŠKO, A. ZATKALÍKOVÁ, V. UHRÍČIK, M. KAŇA, V.

English title

CORROSION RESISTANCE OF AUSTENITIC NiMn-NODULAR CAST IRON IN NACL SOLUTION

Type

journal article in Web of Science

Language

en

Original abstract

Austenitic nodular cast iron is a versatile material that offers a unique combination of properties, making it suitable for use in a wide range of applications where high strength, ductility, toughness, corrosion resistance and wear resistance are required. This material is commonly used in a variety of applications in the chemical and petrochemical industries, in the automotive and aerospace industries, as well as in marine and offshore applications. For the experiments, one of the most common austenitic nodular cast irons (alloyed with nickel and manganese) was chosen. The aim of this paper is to evaluate the corrosion resistance of this austenitic nodular cast iron and compare it with other (non-austenitic) types of nodular cast iron (SiMo- and SiCu-type). Corrosion resistance was determined by an exposure immersion test and an electrochemical potentiodynamic polarization test. Both tests were performed in a 3.5% NaCl solution (to simulate seawater) at ambient temperature. Experimental results prove that austenitic NiMn-nodular cast iron has a higher corrosion resistance than SiMo- and Si-Cunodular cast iron. Moreover, austenitic nodular cast iron has better plastic properties (higher elongation and absorbed energy) but worse strength and fatigue properties (lower tensile strength, hardness and fatigue limit) than the other types of nodular cast iron.

English abstract

Austenitic nodular cast iron is a versatile material that offers a unique combination of properties, making it suitable for use in a wide range of applications where high strength, ductility, toughness, corrosion resistance and wear resistance are required. This material is commonly used in a variety of applications in the chemical and petrochemical industries, in the automotive and aerospace industries, as well as in marine and offshore applications. For the experiments, one of the most common austenitic nodular cast irons (alloyed with nickel and manganese) was chosen. The aim of this paper is to evaluate the corrosion resistance of this austenitic nodular cast iron and compare it with other (non-austenitic) types of nodular cast iron (SiMo- and SiCu-type). Corrosion resistance was determined by an exposure immersion test and an electrochemical potentiodynamic polarization test. Both tests were performed in a 3.5% NaCl solution (to simulate seawater) at ambient temperature. Experimental results prove that austenitic NiMn-nodular cast iron has a higher corrosion resistance than SiMo- and Si-Cunodular cast iron. Moreover, austenitic nodular cast iron has better plastic properties (higher elongation and absorbed energy) but worse strength and fatigue properties (lower tensile strength, hardness and fatigue limit) than the other types of nodular cast iron.

Keywords in English

Corrosion; Ni-Resist; austenitic nodular cast iron; EN-GJSA-XNiMn13-7

Released

24.09.2024

Publisher

POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS

Location

WARSZAWA

ISSN

1733-3490

Volume

69

Number

3

Pages from–to

1115–1122

Pages count

8

BIBTEX


@article{BUT197000,
  author="Alan {Vaško} and Viera {Zatkalíková} and Milan {Uhríčik} and Václav {Kaňa},
  title="CORROSION RESISTANCE OF AUSTENITIC NiMn-NODULAR CAST IRON IN NACL SOLUTION",
  year="2024",
  volume="69",
  number="3",
  month="September",
  pages="1115--1122",
  publisher="POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS",
  address="WARSZAWA",
  issn="1733-3490"
}