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Quantitative analysis of multi-phase systems -steels with mixture of ferrite and austenite
Linköping University, The Department of Physics, Chemistry and Biology.
2004 (English)Independent thesis Basic level (professional degree)Student thesis
Abstract [en]

The goal of this work has been to evaluate the different experimental techniques used for quantitative analysis of multi-phase materials systems.

Powder based specimens containing two-phases, austenite and ferrite , were fabricated and quantified. The volume fraction of ferrite varied from 2 Vol% to 50 Vol%.

X ray powder diffraction (XRD) measurements were based on two peak analysis. Computer based software Topas was used for quantitative analysis, which is believed to be the most advanced in this field. XRD results were found within the absolute limit of +/- 4% of given ferrite volume fraction. Volume fraction as low as 2 Vol% was successfully detected and quantified using XRD. However, high statistical error was observed in case of low volume fraction, such as 2 Vol% and 5 Vol% ferrite volume fraction.

Magnetic balance (MB) measurements were performed to determine the volume fraction of magnetic phase, ferrite. MB results were found in good agreement with given volume fractions. As low as 2 Vol% volume fraction was detected and quantified with MB. MB results were within the absolute limit of +/- 4% of given ferrite volume fraction.

Image analysis (IA) was performed after proper sample preparation as required by electron backscatter diffraction (EBSD) mode of Scanning electron microscopy (SEM). IM results were found within the absolute limit of +/- 2 % of given ferrite volume fraction. However, high statistical error was observed in case of 2 Vol% volume fraction.

Place, publisher, year, edition, pages
Institutionen för fysik, kemi och biologi , 2004.
Keyword [en]
Physics, Quantitative analysis, X-ray powder diffraction, Electron backscatter diffraction, Magnetic balance, Topas, Austenite and Ferrite steels.
Keyword [sv]
Fysik
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-2681ISRN: LITH-IFM-EX--04/1358--SEOAI: oai:DiVA.org:liu-2681DiVA: diva2:20022
Uppsok
fysik/kemi/matematik
Available from: 2005-01-25 Created: 2005-01-25

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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