Published January 2015
| Version v1
Journal article
Structure refinement for the α-ε transition of iron by using EXAFS
Creators
- 1. Hiroshima University, Graduate School of Science, Higashi-Hiroshima, Hiroshima (Japan)
- 2. Japan Atomic Energy Agency, Quantum Beam Science Center, Sayo, Hyogo (Japan)
- 3. Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), Sayo, Hyogo (Japan)
- 4. Ehime University, Geodynamics Research Center, Matsuyama, Ehime (Japan)
- 5. Sumitomo Electric Industries, Ltd., Advanced Materials R and D Laboratories, Itami, Hyogo (Japan)
Description
To investigate trigger of the α-ε transition of iron, local structure around iron atom has been precisely determined by using extended X-ray absorption fine structure (EXAFS). Our model to fit the EXAFS profile takes into account the crystal symmetry, which enables us to separately evaluate atomic displacements via shear or shuffle movements. This study demonstrates that shear stress is important to initiate the α-ε transition. (author)
Additional details
Publishing Information
- Journal Title
- Hoshako
- Journal Volume
- 28
- Journal Issue
- 1
- Journal Page Range
- p. 3-11
- ISSN
- 0914-9287
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 46124661
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ABSORPTION SPECTRA; BCC LATTICES; CRYSTAL-PHASE TRANSFORMATIONS; DEFORMATION; FERROMAGNETISM; HCP LATTICES; IRON; MAGNETIC CIRCULAR DICHROISM; MARTENSITE; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; SHEAR; STRESSES; X-RAY SPECTRA
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DICHROISM; ELEMENTS; HEXAGONAL LATTICES; IRON ALLOYS; MAGNETISM; METALS; PHASE TRANSFORMATIONS; PRESSURE RANGE; SPECTRA; THREE-DIMENSIONAL LATTICES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS
Optional Information
- Notes
- 26 refs., 7 figs.