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Particles Precipitation in Ti- and Al-Deoxidized Hadfield Steels
Jönköping University, Sweden.
Jönköping University, Sweden.
RISE, Swerea, SWECAST.
Comdicast AB, Sweden.
Show others and affiliations
2016 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 87, no 10, p. 1344-1355Article in journal (Refereed) Published
Abstract [en]

The characteristics and precipitation mechanism of particles in titanium- and aluminum-treated Hadfield steel casted during pilot-scale experiments have been studied. Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Spectroscopy (EDS) are utilized for the particle analysis and characterization. Additionally, thermodynamic equilibrium calculations are performed using Thermo-Calc software. Aluminum oxides, titanium carbon nitrides, titanium carbides, and manganese sulfides are the main types of particles found. The order of precipitation during solidification and chemical composition range of each type of particle are determined. Aluminum oxides are found to act as nucleation sites for titanium carbon nitrides. Thermodynamic equilibrium calculations for particles characteristics are in good agreement with the experimental findings. Titanium carbides are found to form during initial stages of the ferro-titanium additions dissolution.

Place, publisher, year, edition, pages
Wiley-VCH Verlag , 2016. Vol. 87, no 10, p. 1344-1355
Keywords [en]
aluminum, deoxidation, Hadfield steel, particles, titanium, Aluminum oxide, Carbon nitride, Elementary particles, Energy dispersive spectroscopy, Manganese compounds, Scanning electron microscopy, Sulfur compounds, Titanium carbide, Titanium nitride, Titanium oxides, Energy dispersive X ray spectroscopy, Light optical microscopies, Particles precipitation, Pilot-scale experiments, Precipitation mechanism, Thermodynamic equilibrium calculation, Precipitation (chemical)
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40959DOI: 10.1002/srin.201500400Scopus ID: 2-s2.0-84959496093OAI: oai:DiVA.org:ri-40959DiVA, id: diva2:1376933
Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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