Change search
ReferencesLink to record
Permanent link

Direct link
Prediction of intragranular ferrite nucleation from TiO, TiN, and VN inclusions
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.ORCID iD: 0000-0003-0533-6729
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2016 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 51, no 4, 2168-2180 p.Article in journal (Refereed) PublishedText
Abstract [en]

The current study presents a method to calculate the critical diameters of TiO, TiN, and VN inclusions for intragranular ferrite (IGF) nucleation in steels. Based on the calculation results, it was noted that the critical diameters of TiO, TiN, and VN inclusions for IGF nucleation were 0.192, 0.355, and 0.810 μm. The calculation results agreed with the experiment data of a minimum inclusion size for IGF nucleation in the actual steel samples. Moreover, the effects of Mn, C, and S contents on the critical diameters of inclusions were investigated. It was found that the critical diameters of TiO, TiN, and VN inclusions increased with the increasing Mn and C contents. In addition, it was found that S does not have a direct effect on the critical diameters of TiO, TiN, and VN inclusions. However, the increasing S content led to an increased amount of MnS precipitation in the actual steels. This is negative, since MnS is ineffective nucleation site for IGF nucleation. When the amount of MnS increases in steels, the area fraction of IGF slightly decreases. This fact has been investigated by in situ observation experiments.

Place, publisher, year, edition, pages
Springer-Verlag New York, 2016. Vol. 51, no 4, 2168-2180 p.
Keyword [en]
C-MN STEEL, HEAT-AFFECTED ZONE, LOW-ALLOY STEEL, ACICULAR FERRITE, NONMETALLIC INCLUSIONS, MICROSTRUCTURE CONTROL, INTERFACIAL ENERGY, SULFUR-CONTENT, WELD METALS, OXIDE
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-180938DOI: 10.1007/s10853-015-9527-6ISI: 000367647100050ScopusID: 2-s2.0-84953359525OAI: oai:DiVA.org:kth-180938DiVA: diva2:897595
Note

QC 20160126. QC 20160205

Available from: 2016-01-26 Created: 2016-01-25 Last updated: 2016-02-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Mu, WangzhongJönsson, PärNakajima, Keiji
By organisation
Applied Process Metallurgy
In the same journal
Journal of Materials Science
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 32 hits
ReferencesLink to record
Permanent link

Direct link