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자료유형
학술저널
저자정보
차수빈 (울산대학교) 김회진 (울산대학교) 후인 옥-팟 (울산대학교) 정구현 (울산대학교)
저널정보
한국트라이볼로지학회 Tribology and Lubricants Tribology and Lubricants 제36권 제4호
발행연도
2020.8
수록면
199 - 206 (8page)

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CoCr-based alloys have been developed as wear-resistant materials owing to their excellent mechanical properties and strong wear resistance. The purpose of this study is to experimentally assess the frictional and wear characteristics of CoCr-based alloys slid against two different counter materials subjected to various normal forces to determine the expansion applicability of CoCr-based alloys. CoCrMo and CoCr alloys were selected as the target materials and NiCr and NiCrB alloys as counter materials. Experimental tests were performed using a pin-on-reciprocating plate tribo-tester under dry lubrication. Before performing the tests, the surface of the specimens was observed through confocal microscopy and the hardness was measured using a micro-Vickers hardness tester. The wear volume of the plate was calculated at the end of the tests using confocal microscope data, and the wear rate was quantitatively obtained based on Archard's wear law. From the results, the wear rates of the CoCrMo specimens that slid against NiCr and NiCrB are 7.69 × 10<SUP>-6</SUP> mm<SUP>3</SUP>/Nm and 5.26 × 10<SUP>-6</SUP> mm<SUP>3</SUP>/Nm, respectively. The wear rates of the CoCr specimens that slid against NiCr and NiCrB were higher than those of the CoCrMo specimens by factors of approximately 4 and 8, respectively. The CoCrMo specimens further exhibited lower friction characteristics than the CoCr specimens. The findings of this study will be useful for expanded applications of CoCr-based alloys as wear-resistant materials for various mechanical parts.

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Abstract
1. 서론
2. 연구방법 및 내용
3. 결과 및 고찰
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2020-551-001126085