Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Study of the mean size and fraction of the second-phase particles in a 13% chromium steel at high temperature
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Department of Material Science, Dalarna University, Falun, Sweden; .
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-4521-6089
2020 (English)In: Philosophical Magazine, ISSN 1478-6435, E-ISSN 1478-6443, Vol. 100, no 2, p. 217-233Article in journal (Refereed) Published
Abstract [en]

The mean size and fraction of the second-phase particles in a 13% chromium steel are investigated, while no plastic deformation was applied. The results of the measurement are compared with the modelling results from a physicallybased model. The heating sequence is performed on samples using a Gleeble thermo-mechanical simulator over the temperature range of 850–1200°C. Using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), the size distribution and composition of the carbides were evaluated, respectively. For obtaining particle size distribution (PSD), an image-processing software was employed to analyse the SEM images. Additionally, the relation between the 2D shape factor and size of the particles is also studied at different temperatures and most of the particles turned out to have a shape factor close to two. In order to measure the carbide weight fraction, electrochemical phase isolation was employed. The Ms and fraction of the martensite phase after quenching of samples are calculated and the results were comparable with the measured hardness values at corresponding temperatures. The measured hardness of the samples is found to comply very well with the measured mean size of the precipitates. The calculated mean size of the particles from the model shows very good agreement with both hardness value and experimentally measured mean size, while the calculated volume fraction from simulation follows a slightly different trend.

Place, publisher, year, edition, pages
Taylor & Francis, 2020. Vol. 100, no 2, p. 217-233
Keywords [en]
carbides, Modelling, particle volume fraction, particles mean size, shape factor of carbides, stainless steel
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-267821DOI: 10.1080/14786435.2019.1674455ISI: 000491547100001Scopus ID: 2-s2.0-85074354022OAI: oai:DiVA.org:kth-267821DiVA, id: diva2:1397066
Note

QC 20200227

Available from: 2020-02-27 Created: 2020-02-27 Last updated: 2020-05-30Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Safara, NimaÅgren, John

Search in DiVA

By author/editor
Safara, NimaÅgren, John
By organisation
Materials Science and Engineering
In the same journal
Philosophical Magazine
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 1 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf