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논문 기본 정보

자료유형
학술저널
저자정보
강용진 (한국기계연구원) 김도현 (한국기계연구원) 류호준 (한국기계연구원) 김종국 (한국기계연구원) 장영준 (한국기계연구원)
저널정보
한국트라이볼로지학회 Tribology and Lubricants 한국윤활학회지 제35권 제6호
발행연도
2019.12
수록면
362 - 368 (7page)

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In this study, mechanical and tribological properties were investigated by varying the process temperature (50, 100, 125 and 150 ℃) to reduce internal stress. The internal stress reduction by thermal dissociation ta-C coating film with increasing temperature is confirmed through the curvature radius of the ta-C coating according to the temperature of the SUS plate. As the coating temperature increased, the mechanical properties (hardness, modulus, toughness) deteriorated, which is in agreement with the Raman analysis results. As the temperature increased, the sp2 phase ratio increased owing to the dissociation of the sp3 phase. The friction and wear properties are related to the process temperature during ta-C coating. Low friction and wear properties are observed in high hardness samples manufactured at 50 ℃, and wear resistance properties decreased with increasing temperature. The contact area is expected to increase owing to the decrease of hardness(72 ㎬ to 39 ㎬) and fracture toughness with increasing temperature which accelerated wear because of the debris generated. It was confirmed that at process temperature of over than 100 ℃, the bond structure of the carbon film changed, and the effect of excellent internal stress was reduced. However, the wear resistance simultaneously decreased owing to the reduction in fracture toughness. Therefore, in order to increase industrial utilization, optimum temperature conditions that reduce internal stress and retain mechanical properties.

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Abstract
1. 서론
2. 연구방법 및 내용
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2020-551-000229214