| Project/Area Number |
22560099
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Materials/Mechanics of materials
|
|---|
| Research Institution | Oita National College of Technology |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
TODAKA Yoshikazu 豊橋科学技術大学, 機械工学系, 准教授 (50345956)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2012: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
|
|---|
| Keywords | ナノ結晶粒 / 表面改質 / 摩擦加工 / 疲労強度 / き裂伝ぱ |
|---|
| Research Abstract |
In order to form Nano-crystal-grained structure on the surface and to raise the Fatigue strength , study which performs severe plastic deformation (SPD) at the final stage of lathe turning was carried out . By cutting friction working process which uses the chip of special shape, the ultrafine- grained structure was formed on the surface of the heat treated 0.45% carbon steel , the annealed 0.45% carbon steel and the Ti-6A1-4V alloy. The rotary bending fatigue strength of those materials improved greatly.
|
