| Project/Area Number |
15K13858
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
大宮 祐也 岡山大学, 自然科学研究科, 助教 (40717203)
藤井 正浩 岡山大学, 自然科学研究科, 教授 (80209014)
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| Co-Investigator(Renkei-kenkyūsha) |
FUJII Masahiro 岡山大学, 大学院自然科学研究科, 教授 (80209014)
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| Research Collaborator |
NISHINA Yuta
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 酸化グラフェン / 疲労破壊 / PAO / 摩擦 / 摩耗 / ピッチング / トライボロジー / 転動試験 / 潤滑油 |
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| Outline of Final Research Achievements |
In order to prevent fatigue fractures by repeated stress, hardness of contact materials have been increased. However it is not sufficient. In this study, we carried out to improve fatigue life using dispersing graphene oxide in lubricating oil. Dispersion methods of graphene oxide in lubricating oil and rolling tester with minimum lubricating oils were developed. Improvement of fatigue life was achieved by the dispersing graphene oxide in the lubricating oil. However, formation of tribofilm which seems to greatly improve fatigue life was not achieved. In the future, in order to achieve further improvement of fatigue life, we will discover dispersants that will improve formation of tribofilms.
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