Effects of bismuth on the matrix structure of ductile iron castings

Scientific paper - Original scientific paper

• Author: Zoran Glavaš
• Author: Anita Štrkalj
• Editor: Dimitar Stavrev
• Author's institution: University of Zagreb; Faculty of Metallurgy; (Department of Process Metallurgy); (Laboratory of chemistry (basic, inorganic, physical))
• Author's institution: University of Zagreb; Faculty of Metallurgy; (Department of Process Metallurgy); (Laboratory of Iron, Steel and Founding)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy; Process Metallurgy

Abstract (english)

This paper deals with the effects of the addition of 0.00031, 0.00064, 0.001 and 0.0042 wt.% Bi on the matrix structure of ductile iron castings consisting of 7 sections of different thicknesses (3, 12, 25, 38, 50, 75 and 100 mm) and contain low content of Si (2.11 wt.%) and pearlite promoting element (0.018 wt.% Cu, 0.0055 wt.% Sn, 0.00041 wt.% Sb, 0.098 wt.% Mn). The Bi contents of 0.00031, 0.00064 and 0.001 wt.% were not significantly affected the share of ferrite and pearlite in the section thicknesses of 12, 25, 38, 50, 75 and 100 mm compared to the casting which does not contain Bi. In all these sections the share of pearlite was increased and the share of ferrite was decreased by the addition of 0.0042 wt.% Bi. All of the above-mentioned Bi contents were resulted in the formation of iron carbides in the section thickness of 3 mm. The share of carbides increases with increasing Bi content.

• Keywords (english): ductile iron; bismuth; matrix structure
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Publication title: Proceedings book of the XXVIth International Scientific and Technical Conference Foundry 2019
• Numbering: pp. 8-10
• p-ISSN: 2535-017X
• URN:NBN: urn:nbn:hr:115:062237
• Publication: 2019
• Conference: Title: XXVI International Scientific and Technical Conference Foundry 2019; Acronym: -; Location: Pleven, Bulgaria; Start date: 2019-04-10; End date: 2019-04-12; Assembly type: Poster
• Document URL: http://bib.irb.hr/996725
• Type of resource: Text
• Publisher: Scientific-Technical Union of Mechanical Engineering
• Publishing place: Pleven
• Access conditions: Closed access
• Created on: 2019-07-09 08:07:09