2010 Fiscal Year Final Research Report
Control of grain boundary microstructure for improvement of fatigue property in FCC metallic materials
| Project/Area Number |
21760560
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Structural/Functional materials
|
|---|
| Research Institution | Ashikaga Institute of Technology |
|---|
Principal Investigator |
KOBAYASHI Shigeaki Ashikaga Institute of Technology, 工学部, 准教授 (00323931)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Keywords | 疲労破壊 / 疲労き裂進展 / 結晶粒界 / 粒界工学 / 加工熱処理 |
|---|
| Research Abstract |
The new material processing based on the control of grain boundary microstructure for improvement of fatigue property was discussed for SUS304 stainless steel and 6010 aluminum alloy with a face centered cubic (FCC) structure. A clue to control of grain boundary microstructure for these FCC materials with different stacking fault energies was obtained. It was revealed that the fatigue fracture was controlled by introducing higher fraction of coincidence site lattice boundaries with low grain boundary energies.
|
