Abstract
To clarify the erosion mechanism of cavitation, we pay attention to the internal changes in grains caused by cavitation impact. The vibratory cavitation test based on ASTM G32 was carried out and the cross section of directly under the eroded surface of a specimen was observed using the electron backscattering diffraction (EBSD) technique. The situations of grain boundaries and the changes in the crystal orientations of grains in aluminum, copper, and steel were analyzed. As a result, the following observations were made. Cavitation impact causes grain refining of sub-micrometer order near the eroded surface. There exist small changes in crystal orientation in grains. In steel, grain boundaries were generated on the eroded surface and were growing inward in the grain. Finally, the mechanism of internal deformation of grains caused by cavitation impact was discussed.
| Original language | English |
|---|---|
| Article number | 07HE03 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 50 |
| Issue number | 7 PART 2 |
| DOIs | |
| Publication status | Published - 2011 Jul 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Observation of microstructural deformation behavior in metals caused by cavitation impact. / Sugasawa, Shinobu; Uematsu, Susumu; Akiyama, Shigeru.
In: Japanese Journal of Applied Physics, Vol. 50, No. 7 PART 2, 07HE03, 01.07.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Observation of microstructural deformation behavior in metals caused by cavitation impact
AU - Sugasawa, Shinobu
AU - Uematsu, Susumu
AU - Akiyama, Shigeru
PY - 2011/7/1
Y1 - 2011/7/1
N2 - To clarify the erosion mechanism of cavitation, we pay attention to the internal changes in grains caused by cavitation impact. The vibratory cavitation test based on ASTM G32 was carried out and the cross section of directly under the eroded surface of a specimen was observed using the electron backscattering diffraction (EBSD) technique. The situations of grain boundaries and the changes in the crystal orientations of grains in aluminum, copper, and steel were analyzed. As a result, the following observations were made. Cavitation impact causes grain refining of sub-micrometer order near the eroded surface. There exist small changes in crystal orientation in grains. In steel, grain boundaries were generated on the eroded surface and were growing inward in the grain. Finally, the mechanism of internal deformation of grains caused by cavitation impact was discussed.
AB - To clarify the erosion mechanism of cavitation, we pay attention to the internal changes in grains caused by cavitation impact. The vibratory cavitation test based on ASTM G32 was carried out and the cross section of directly under the eroded surface of a specimen was observed using the electron backscattering diffraction (EBSD) technique. The situations of grain boundaries and the changes in the crystal orientations of grains in aluminum, copper, and steel were analyzed. As a result, the following observations were made. Cavitation impact causes grain refining of sub-micrometer order near the eroded surface. There exist small changes in crystal orientation in grains. In steel, grain boundaries were generated on the eroded surface and were growing inward in the grain. Finally, the mechanism of internal deformation of grains caused by cavitation impact was discussed.
UR - http://www.scopus.com/inward/record.url?scp=79960582965&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960582965&partnerID=8YFLogxK
U2 - 10.1143/JJAP.50.07HE03
DO - 10.1143/JJAP.50.07HE03
M3 - Article
AN - SCOPUS:79960582965
VL - 50
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 PART 2
M1 - 07HE03
ER -