Details

Title

Modification of the High-alloyed White Cast Iron Microstructure with Magnesium Master Alloy

Journal title

Archives of Foundry Engineering

Yearbook

2013

Numer

No 2

Publication authors

Keywords

High-vanadium Cast Iron ; Eutectic Alloy ; Microstructure modification ; Vanadium carbide ; Spheroidal carbides

Divisions of PAS

Nauki Techniczne

Description

Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry:

  • Theoretical Aspects of Casting Processes,
  • Innovative Foundry Technologies and Materials,
  • Foundry Processes Computer Aiding,
  • Mechanization, Automation and Robotics in Foundry,
  • Transport Systems in Foundry,
  • Castings Quality Management,
  • Environmental Protection.

Abstract

High-vanadium cast iron is the white cast iron in which the regular fibrous γ + VC eutectic with the volume fraction of vanadium carbide amounting to about 20% crystallises. This paper presents the results of studies on high-vanadium cast iron subjected to the inoculation treatment with magnesium master alloy. The aim of this operation is to change the morphology of the crystallising VC carbides from the fibrous shape into a spheroidal one. The study also examines the effect of the amount of the introduced inoculant on changes in the morphology of the crystallising VC carbides. To achieve the goals once set, metallographic studies were performed on high-vanadium cast iron of eutectic composition in base state and after the introduction of a variable content of the inoculant. The introduction of magnesium-based master alloy resulted in the expected changes of microstructure. The most beneficial effect was obtained with the introduction of 1.5% of magnesium master alloy, since nearly half of the crystallised vanadium carbides have acquired a spheroidal shape.

Publisher

The Katowice Branch of the Polish Academy of Sciences

Date

2013

Type

Artykuły / Articles

Identifier

ISSN 2299-2944

References

Guzik (2001), The process of transforming cast iron - chosen questions of Foundry Engineering, Archives. ; Kawalec (2008), Structure , Mechanical Properties and Wear Resistance of Highvanadium Cast Iron, ISIJ International, 48, 518, doi.org/10.2355/isijinternational.48.518 ; Kopyciński (2009), Inoculation of chromium white cast iron of Foundry, Archives Engineering, 9, 191. ; Kawalec (2012), Abrasive wear resistance of cast iron with precipitates of spheroidal VC carbides of Foundry, Archives Engineering, 12, 221, doi.org/10.2478/v10266-012-0065-2 ; Kopyciński (2012), Influence of tungsten and titanium on the structure of chromium cast iron Archivesof Foundry, Engineering, 12, 57. ; Kawalec (2011), The spheroidisation of VC carbides in high - vanadium cast iron of Foundry, Archives Engineering, 11, 111. ; Kawalec (2012), Alloyed white cast iron with precipitates of spheroidal vanadium carbides VC ofFoundry, Archives Engineering, 12, 95, doi.org/10.2478/v10266-012-0113-y ; Kopyciński (2011), The structure of abrasion - resisting castings made of chromium cast iron of Foundry, Archives Engineering, 11, 61. ; Fraś (2008), Structure , mechanical properties and abrasive wear resistance of Fe - alloys ( in Polish ), Materials Engineering, 29, 78. ; Nishiuchi (2003), Development of Stainless Spheroidal Carbide Cast Iron Transaction ofthe American Foundry, Society, 831. ; Tokaji (2006), Effect of microstructure and carbide spheroidization on fatigue behaviour in high Ni cast irons International Journalof, Fatigue, 28, 281, doi.org/10.1016/j.ijfatigue.2005.05.009

DOI

10.2478/afe-2013-0039

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