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Bainite in the light of rapid continuous cooling information
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-7656-9733
KTH, Superseded Departments, Materials Science and Engineering.
1996 (English)In: Metallurgical and Materials Transactions. A, ISSN 1073-5623, E-ISSN 1543-1940, Vol. 27, no 6, 1501-1512 p.Article in journal (Refereed) Published
Abstract [en]

Rapid continuous cooling of pure iron can produce three different transformations yielding acicular structures: Widmanstätten a, lath martensite, and lenticular martensite. The information on their extensions into binary systems with carbon, nickel, and chromium has been reviewed, and admittedly rough methods have been used for estimating growth rates in order to examine the role of diffusion. The effect of alloying elements on their plateau temperatures and growth rates indicates that Widmanstätten a in Fe-C alloys grows under conditions close to local equilibrium for carbon, and it is suggested that the same should hold for edgewise growth of bainite. In Fe-Ni alloys, there are indications that Widmanstätten α grows under a considerable solute drag, an effect which may also occur for bainite. In Fe-Cr alloys, the solute drag effect seems to be weaker but may increase with the carbon content.

Place, publisher, year, edition, pages
1996. Vol. 27, no 6, 1501-1512 p.
Keyword [en]
Alloying; Bainitic transformations; Binary alloys; Carbon; Chromium; Cooling; Diffusion in solids; Growth (materials); Iron alloys; Nickel; Phase equilibria; Temperature; Acicular structures; Iron carbon alloys; Lath martensite; Lenticular martensite; Rapid continuous cooling; Solute drag effect; Widmanstatten; Bainite
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-12506OAI: oai:DiVA.org:kth-12506DiVA: diva2:315567
Note
QC 20100429Available from: 2010-04-29 Created: 2010-04-29 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Nucleation and growth of martensite in steel
Open this publication in new window or tab >>Nucleation and growth of martensite in steel
1997 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 1997. 41 p.
Keyword
martensite, Fe-alloys, α-martensite, athermal martensite, isothermal martensite, plate martensite, lath martensite, nucleation, growth, thermodynamics, plateau temperature, driving force, activation energy, bainite, Widmanstätten α, diffusive mechanism, displacive mechanism, ε-martensite
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-2583 (URN)91-7170-201-6 (ISBN)
Public defence
1997-11-28, 00:00 (English)
Note
QC 20100429Available from: 2000-01-01 Created: 2000-01-01 Last updated: 2010-04-29Bibliographically approved

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Borgenstam, Annika

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