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Quantification of elemental segregation to lath and grain boundaries in low-alloy steel by STEM X-ray mapping combined with the ζ-factor method

  • M. Watanabe EMAIL logo and D. B. Williams
Published/Copyright: January 11, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 94 Issue 3

Abstract

Elemental segregation to two types of boundaries in a low-alloy steel were studied by X-ray mapping using scanning transmission electron microscopy (STEM). To quantify the acquired X-ray maps, the ζ-factor method was applied, and then the compositional maps and the thickness map were obtained. Based on these quantified maps, further information about the analytical sensitivity of solute-element detection and the spatial resolution of segregation analysis were extracted. Furthermore, maps of the number of excess atoms on the boundary were also calculated from the compositional and thickness maps. It was concluded that Cr, Ni and Mo are co-segregated on the prior-austenite grain boundary and only Ni was segregated on the lath boundary.

Keywords: Quantitative X-ray microanalysis; Minimum mass fraction; Spatial resolution; Boundary coverage
Masashi Watanabe Department of Materials Science and Engineering Lehigh University 5 E. Packer Ave., Bethlehem, PA, 18015-3195, USA Tel.: +1 610 758 4002 Fax: +1 610 758 3526
Dedicated to Professor Dr. Dr. h. c. Manfred Rühle on the occasion of his 65th birthday

Funding statement: The authors acknowledge Dr. M. G. Burke at Bechtel-Bettis Labs. Inc. for useful discussions and DBW wishes to acknowledge the support of the National Science Foundation through grant DMR 99-72670.

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Received: 2002-08-27
Published Online: 2022-01-11

© 2003 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles/Aufsätze
  5. The role of oxidation-induced cavities on the failure of the thermally grown oxide on binary β-NiAl alloys
  6. Phase stability of Y + Gd co-doped zirconia
  7. Mechanisms governing the distortion of alumina-forming alloys upon cyclic oxidation
  8. High-temperature oxidation of FeCrAl alloys: the effect of Mg incorporation into the alumina scale
  9. Nonlinear dielectric properties at oxide grain boundaries
  10. TEM observations of singular grain boundaries and their roughening transition in TiO2-excess BaTiO3
  11. Processing of dense MgO substrates for high-temperature superconductors
  12. Microwave-induced crystallization of polysilazane-derived silicon carbonitride
  13. Schottky barrier formation in liquid-phase-sintered silicon carbide
  14. SrTiO3: a model electroceramic
  15. Optical properties and electronic structure of oxidized and reduced single-crystal strontium titanate
  16. Spreading of liquid Ag and Ag–Mo alloys on molybdenum substrates
  17. Nanoalloying in mixed AgmAun nanowires
  18. Never ending saga of a simple boundary
  19. Comparison of interfacial chemistry at Cu/α-alumina and Cu/γ-alumina interfaces
  20. Microstructure of Cu2O/Si interfaces, made by epitaxial electrodeposition
  21. Metal/oxide interfaces and their reaction with hydrogen
  22. Amorphous films at metal/ceramic interfaces
  23. Some thoughts on source monochromation and the implications for electron energy loss spectroscopy
  24. Determination of the contrast transfer function by analysing diffractograms of thin amorphous foils
  25. Progress in the preparation of cross-sectional TEM specimens by ion-beam thinning
  26. Quantification of interfacial segregation by analytical electron microscopy
  27. Quantification of elemental segregation to lath and grain boundaries in low-alloy steel by STEM X-ray mapping combined with the ζ-factor method
  28. Microstructure of Al/Ti metallization layers
  29. Connectivity of CSL grain boundaries and the role of deviations from exact coincidence
  30. Effect of laser shock processing on the microstructure and mechanical properties of pure Cu
  31. Growth and microstructure of iron nitride layers and pore formation in ε-Fe3N
  32. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
  33. Notifications/Mitteilungen
  34. Personal/Personelles
  35. Gesellschaftsnachricht
  36. International Conferences
https://doi.org/10.3139/ijmr-2003-0056
Keywords for this article
Quantitative X-ray microanalysis; Minimum mass fraction; Spatial resolution; Boundary coverage

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles/Aufsätze
  5. The role of oxidation-induced cavities on the failure of the thermally grown oxide on binary β-NiAl alloys
  6. Phase stability of Y + Gd co-doped zirconia
  7. Mechanisms governing the distortion of alumina-forming alloys upon cyclic oxidation
  8. High-temperature oxidation of FeCrAl alloys: the effect of Mg incorporation into the alumina scale
  9. Nonlinear dielectric properties at oxide grain boundaries
  10. TEM observations of singular grain boundaries and their roughening transition in TiO2-excess BaTiO3
  11. Processing of dense MgO substrates for high-temperature superconductors
  12. Microwave-induced crystallization of polysilazane-derived silicon carbonitride
  13. Schottky barrier formation in liquid-phase-sintered silicon carbide
  14. SrTiO3: a model electroceramic
  15. Optical properties and electronic structure of oxidized and reduced single-crystal strontium titanate
  16. Spreading of liquid Ag and Ag–Mo alloys on molybdenum substrates
  17. Nanoalloying in mixed AgmAun nanowires
  18. Never ending saga of a simple boundary
  19. Comparison of interfacial chemistry at Cu/α-alumina and Cu/γ-alumina interfaces
  20. Microstructure of Cu2O/Si interfaces, made by epitaxial electrodeposition
  21. Metal/oxide interfaces and their reaction with hydrogen
  22. Amorphous films at metal/ceramic interfaces
  23. Some thoughts on source monochromation and the implications for electron energy loss spectroscopy
  24. Determination of the contrast transfer function by analysing diffractograms of thin amorphous foils
  25. Progress in the preparation of cross-sectional TEM specimens by ion-beam thinning
  26. Quantification of interfacial segregation by analytical electron microscopy
  27. Quantification of elemental segregation to lath and grain boundaries in low-alloy steel by STEM X-ray mapping combined with the ζ-factor method
  28. Microstructure of Al/Ti metallization layers
  29. Connectivity of CSL grain boundaries and the role of deviations from exact coincidence
  30. Effect of laser shock processing on the microstructure and mechanical properties of pure Cu
  31. Growth and microstructure of iron nitride layers and pore formation in ε-Fe3N
  32. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
  33. Notifications/Mitteilungen
  34. Personal/Personelles
  35. Gesellschaftsnachricht
  36. International Conferences
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