Detail publikace

Effect of Inoculants on the Structure and Properties of Thin-Walled Ductile Iron Castings

ROUČKA, J. KAŇA, V. KRYŠTŮFEK, T. CHÝLKOVÁ, A.

Anglický název

Effect of Inoculants on the Structure and Properties of Thin-Walled Ductile Iron Castings

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova anglicky

Thin-wall castings; Ductile iron; Inoculation; Structure; Mechanical properties

Vydáno

16.12.2022

Nakladatel

POLSKA AKAD NAUK, POLISH ACAD SCIENCES

Místo

WARSZAWA

ISSN

2299-2944

Ročník

2022

Číslo

4

Strany od–do

90–95

Počet stran

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"
}