| Project/Area Number |
25420025
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 密着強度 / 薄膜 / はく離 / 転がり疲労 |
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| Outline of Final Research Achievements |
The objective of this study was to develop a new method to evaluate the adhesive strength of ceramic coating. In this study, the delamination initiation behavior of ceramic coating under the rolling contact fatigue condition was noticed, and the experiments to investigate the relationship between the delamination initiation life and the adhesive strength were carried out. TiAlN coated specimens and CrAlN coated specimens, with various adhesive strength and film hardness, were prepared, and the rolling contact fatigue tests were carried out for these specimens. The delamination initiation life of each specimen was obtained, and the relationship between the delamination initiation life and the adhesion strength obtained by scratch test was investigated. Although there were some exceptions, the correlation between them was recognized, and the new method to evaluate the adhesive strength based on this relationship was expected.
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