3-D visualization of grain boundary in metals by high-resolution X-ray CT
Inquiry number
SOL-0000004507
Beamline
BL47XU (Micro-CT)
Scientific keywords
| A. Sample category | inorganic material |
|---|---|
| B. Sample category (detail) | metal, alloy |
| C. Technique | absorption and its secondary process |
| D. Technique (detail) | |
| E. Particular condition | 3D imaging (cf. CT), room temperature |
| F. Photon energy | X-ray (4-40 keV) |
| G. Target information | local structure, dislocation, strain, structural change, morphology |
Industrial keywords
| level 1---Application area | mechanics |
|---|---|
| level 2---Target | |
| level 3---Target (detail) | |
| level 4---Obtainable information | surface,interface, local structure, crack, crevice |
| level 5---Technique | imaging |
Classification
A80.20 metal ・material, M60.20 X-ray CT
Body text
X-ray CT applying liquid metal penetration technique visualizes grain boundary. This method is possible to observe grain boundary that is nano-scale structures of three-order smaller than present highest resolution in synchrotron radiation CT, three-dimensionally. Figure shows network of grain boundaries and silicon particles of eutectic regions in AC4CH cast aluminum alloy. Decorating grain boundaries with gallium, which has low melting point, is able to visualize macro-network of grain boundaries in aluminum alloys. Highly curved grain-boundaries exist along or across eutectic regions are observed.
Source of the figure
Original paper/Journal article
Journal title
K. H. Khor, H. Toda, et, Journal of Physics: Condensed Matter, 16 (2004), S3511-S3515
Figure No.
Technique
Source of the figure
No figure
Required time for experimental setup
1 shift(s)
Instruments
| Instrument | Purpose | Performance |
|---|---|---|
| X-ray CT system | obtain 3D internal structures of materials | spatial resolution of about 1um |
References
| Document name |
|---|
| K. H. Khor, H. Toda, et, Journal of Physics: Condensed Matter, 16 (2004), S3511-S3515 |
| 小林正和，戸田裕之，他：軽金属学会第108回春期大会講演概要(2005)，p.215-216. |
| T. Ohgaki, H. Toda, et al. Mater Sci Engng, (2005), in press. |
| M. Kobayashi, H. Toda, Scripta Mater., to be submitted. |
Related experimental techniques
Questionnaire
The measurement was possible only in SPring-8. Impossible or very difficult in other facilities.
This solution is an application of a main instrument of the beamline.
Ease of measurement
Middle
Ease of analysis
Middle
How many shifts were needed for taking whole data in the figure?
Two-three shifts