id:"swepub:oai:DiVA.org:kth-28747"
Search: id:"swepub:oai:DiVA.org:kth-28747" > Observed behavior o...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Malmberg, Kristofer J.KTH,Tillämpad processmetallurgi (author)
Observed behavior of various oxide inclusions in front of a solidifying low-carbon steel shell
- Article/chapterEnglish2010
Publisher, publication year, extent ...
- 2009-10-30
- Springer Science and Business Media LLC,2010
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-28747
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28747URI
- https://doi.org/10.1007/s10853-009-3982-xDOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20110120
- The engulfment and pushing (extrusion) of inclusions during solidification play an important role in the formation of a steel structure and, as a result, for the mechanical properties of the final steel product. The aim of this study is to gain knowledge about the behavior of non-metallic inclusions at the interface between a growing solid front and a liquid phase. The focus is on the effect of the titanium and titanium oxide content on the inclusions and the different phenomena, which occurs at the solid/liquid interface. This was studied in samples of low-carbon steels de-oxidized by different combinations of Al, Ca, and Ti. For this purpose, each metal sample of 0.19 g was melted at a temperature close to 1550 A degrees C in an argon atmosphere and solidified under different solidification rates. A direct observation of inclusion behavior during solidification was made using a confocal scanning laser microscope equipped with an infrared gold image furnace. The alloying elements in the sample varied between: C 0.002-0.044; Si 0.02-1.33; Mn 0.12-1.33; P 0.003-0.016; S 0.003-0.01; Al 0.002-0,033; Ni 0-0.28; Cr 0-0.25; Ti 0.008-0.065; Ca 0.0007-0.002; O 0.002-0.0114 and N 0.0028-0.0056 (mass%). Several types of inclusions with different morphologies were found within the sample. The morphology of the observed inclusions on the molten steel surface varied from round alumina and calcium-oxide-rich inclusion to needle-shaped titanium oxide-rich inclusions. The observed motions of the inclusions at the vicinity of the front of the solidifying steels were classified. At a low solidifying velocity and a small inclusion size, inclusions flowed away from the solidifying front. Furthermore, they also or got pushed a distance and thereafter flowed away from the interface. At a medium velocity and a slightly bigger size, inclusions tend to get pushed in front of the solidifying front. Another observation was that at a high velocity and a large particle size, inclusions tend to get engulfed or pushed and then engulfed by the progressing front. The relationship among the morphology, chemical composition of inclusions and the solidifying velocity is discussed in this article.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Materialteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering hsv//eng
- NONMETALLIC INCLUSIONS
- SOLIDIFICATION FRONT
- PUSHING/ENGULFMENT TRANSITION
- CRITICAL VELOCITY
- INTERFACE
- ENGULFMENT
- PARTICLES
- DYNAMICS
- ALLOY
- Materials science
- Teknisk materialvetenskap
Added entries (persons, corporate bodies, meetings, titles ...)
- Shibata, HiroyukiInstitute of Multidisciplinary for Advanced Materials, Tohoku University, Sendai, Japan (author)
- Kitamura, Shin-yaInstitute of Multidisciplinary for Advanced Materials, Tohoku University, Sendai, Japan (author)
- Jönsson, PärKTH,Tillämpad processmetallurgi(Swepub:kth)u118w09b (author)
- Nabeshima, SeijiSteel Research Laboratory, JFE Steel Corp., Kurashiki, Japan (author)
- Kishimoto, YasuoSteel Research Laboratory, JFE Steel Corp., Kurashiki, Japan (author)
- KTHTillämpad processmetallurgi (creator_code:org_t)
Related titles
- In:Journal of Materials Science: Springer Science and Business Media LLC45:8, s. 2157-21640022-24611573-4803
Internet link
Find in a library
- Journal of Materials Science (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Malmberg, Kristo ...
- Shibata, Hiroyuk ...
- Kitamura, Shin-y ...
- Jönsson, Pär
- Nabeshima, Seiji
- Kishimoto, Yasuo
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- Articles in the publication
- Journal of Mater ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
