Abstract
Atmospheric-controlled induction-heating fine particle peening (AIH-FPP) was conducted in a N2 atmosphere to form ultrafine grains on the surface of Fe-Cr alloys. The surface microstructure of Fe-2%Cr alloy and Fe-10%Cr alloy treated with AIH-FPP at 973 K and 1073 K was characterized using optical microscopy, scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). AIH-FPP can be used as a thermomechanical process to form ultrafine grains on the surface of Fe-Cr alloys because strain is induced by AIH-FPP at a high rate and high temperature during dynamic recrystallization. In particular, the grain size of Fe-Cr alloys tends to decrease with increasing AIH-FPP treatment time. This is attributed to the increase in the strain induced by AIH-FPP with increasing AIH-FPP treatment time during dynamic recrystallization. Thus, the AIH-FPP-induced stratification structure composed of fine grains becomes more pronounced with increasing treatment time. Furthermore, the AIH-FPP treatment temperature at which fine grains are formed depends on the Cr concentration of the Fe-Cr alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 410-417 |
| Number of pages | 8 |
| Journal | Surface and Coatings Technology |
| Volume | 344 |
| DOIs | |
| Publication status | Published - 2018 Jun 25 |
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Keywords
- Dynamic recrystallization
- Grain refinement
- Peening
- Thermomechanical processing
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
Cite this
Dynamic recrystallization of Fe-Cr alloys by atmospheric-controlled induction-heating fine particle peening. / Kikuchi, Shoichi; Tanaka, Ikko; Takesue, Shogo; Komotori, Jun; Matsumoto, Keishi.
In: Surface and Coatings Technology, Vol. 344, 25.06.2018, p. 410-417.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamic recrystallization of Fe-Cr alloys by atmospheric-controlled induction-heating fine particle peening
AU - Kikuchi, Shoichi
AU - Tanaka, Ikko
AU - Takesue, Shogo
AU - Komotori, Jun
AU - Matsumoto, Keishi
PY - 2018/6/25
Y1 - 2018/6/25
N2 - Atmospheric-controlled induction-heating fine particle peening (AIH-FPP) was conducted in a N2 atmosphere to form ultrafine grains on the surface of Fe-Cr alloys. The surface microstructure of Fe-2%Cr alloy and Fe-10%Cr alloy treated with AIH-FPP at 973 K and 1073 K was characterized using optical microscopy, scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). AIH-FPP can be used as a thermomechanical process to form ultrafine grains on the surface of Fe-Cr alloys because strain is induced by AIH-FPP at a high rate and high temperature during dynamic recrystallization. In particular, the grain size of Fe-Cr alloys tends to decrease with increasing AIH-FPP treatment time. This is attributed to the increase in the strain induced by AIH-FPP with increasing AIH-FPP treatment time during dynamic recrystallization. Thus, the AIH-FPP-induced stratification structure composed of fine grains becomes more pronounced with increasing treatment time. Furthermore, the AIH-FPP treatment temperature at which fine grains are formed depends on the Cr concentration of the Fe-Cr alloys.
AB - Atmospheric-controlled induction-heating fine particle peening (AIH-FPP) was conducted in a N2 atmosphere to form ultrafine grains on the surface of Fe-Cr alloys. The surface microstructure of Fe-2%Cr alloy and Fe-10%Cr alloy treated with AIH-FPP at 973 K and 1073 K was characterized using optical microscopy, scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). AIH-FPP can be used as a thermomechanical process to form ultrafine grains on the surface of Fe-Cr alloys because strain is induced by AIH-FPP at a high rate and high temperature during dynamic recrystallization. In particular, the grain size of Fe-Cr alloys tends to decrease with increasing AIH-FPP treatment time. This is attributed to the increase in the strain induced by AIH-FPP with increasing AIH-FPP treatment time during dynamic recrystallization. Thus, the AIH-FPP-induced stratification structure composed of fine grains becomes more pronounced with increasing treatment time. Furthermore, the AIH-FPP treatment temperature at which fine grains are formed depends on the Cr concentration of the Fe-Cr alloys.
KW - Dynamic recrystallization
KW - Grain refinement
KW - Peening
KW - Thermomechanical processing
UR - http://www.scopus.com/inward/record.url?scp=85044475273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044475273&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2018.03.030
DO - 10.1016/j.surfcoat.2018.03.030
M3 - Article
AN - SCOPUS:85044475273
VL - 344
SP - 410
EP - 417
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -