Publication detail
Effect of Inoculants on the Structure and Properties of Thin-Walled Ductile Iron Castings
ROUČKA, J. KAŇA, V. KRYŠTŮFEK, T. CHÝLKOVÁ, A.
English title
Effect of Inoculants on the Structure and Properties of Thin-Walled Ductile Iron Castings
Type
journal article in Web of Science
Language
en
Original abstract
In many application fields, thin-walled ductile iron castings can compete with castings made from aluminium alloys thanks as their show superior mechanical properties higher stiffness, vibrations damping as well as properties at higher temperatures. As problematic criterion in thin-walled cast-iron castings can be seen the graphitization ability and high sensitivity of the structure and the mechanical properties to the solidification rate. The tests were curried on plate castings with wall thicknesses of 3, 5, and 8 mm, using inoculants based on FeSi70 with different contents of nucleation-active elements as aluminium, calcium, zirconium and magnesium. The inoculation was made by the in-mould method. In the experiments structures were achieved, differing by the graphite dispersity, structure and mechanical properties. The experiments have proved particularly a high sensitivity of the structure and the mechanical properties to the cooling rate of the sample castings. The influence of the inoculant type is less important than the influence of solidification rate.
English abstract
In many application fields, thin-walled ductile iron castings can compete with castings made from aluminium alloys thanks as their show superior mechanical properties higher stiffness, vibrations damping as well as properties at higher temperatures. As problematic criterion in thin-walled cast-iron castings can be seen the graphitization ability and high sensitivity of the structure and the mechanical properties to the solidification rate. The tests were curried on plate castings with wall thicknesses of 3, 5, and 8 mm, using inoculants based on FeSi70 with different contents of nucleation-active elements as aluminium, calcium, zirconium and magnesium. The inoculation was made by the in-mould method. In the experiments structures were achieved, differing by the graphite dispersity, structure and mechanical properties. The experiments have proved particularly a high sensitivity of the structure and the mechanical properties to the cooling rate of the sample castings. The influence of the inoculant type is less important than the influence of solidification rate.
Keywords in English
Thin-wall castings; Ductile iron; Inoculation; Structure; Mechanical properties
Released
16.12.2022
Publisher
POLSKA AKAD NAUK, POLISH ACAD SCIENCES
Location
WARSZAWA
ISSN
2299-2944
Volume
2022
Number
4
Pages from–to
90–95
Pages count
6
BIBTEX
@article{BUT181427,
author="Jaromír {Roučka} and Václav {Kaňa} and Tomáš {Kryštůfek} and Adéla {Chýlková},
title="Effect of Inoculants on the Structure and Properties of Thin-Walled Ductile Iron Castings",
year="2022",
volume="2022",
number="4",
month="December",
pages="90--95",
publisher="POLSKA AKAD NAUK, POLISH ACAD SCIENCES",
address="WARSZAWA",
issn="2299-2944"
}