2013 Fiscal Year Final Research Report
Nanocrystallized cemented carbide fabricated by friction stir processing
| Project/Area Number |
23760707
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 摩擦攪拌プロセス / 超硬合金 |
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| Research Abstract |
The cemented carbide layer was successfully modified by Friction Stir Processing (FSP). The defects in the cemented carbide layer disappeared, and the WC particles were densely packed. It is considered that the plastic flow of the metal binder induced by the FSP led to the rearrangement of the WC particles. The grains of the metal binder were refined to ~200 nm. Additionally, the various metals contained hard particles were also successfully modified by FSP.
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