2012 Fiscal Year Final Research Report
Suggestion of a cutting friction working process to form the Nano crystal grained structure and characteristic evaluation.
| Project/Area Number |
22560099
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Oita National College of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TODAKA Yoshikazu 豊橋科学技術大学, 機械工学系, 准教授 (50345956)
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| Project Period (FY) |
2010 – 2012
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| Keywords | ナノ結晶粒 |
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| 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.
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