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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 A권 대한기계학회논문집 A권 제26권 제12호
발행연도
2002.12
수록면
2,581 - 2,589 (9page)

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In this research. fretting tests were conducted in air to investigate the wear characteristics of fuel cladding materials with the fretting parameters such as normal load. slip amplitude. frequency and the number of cycles. A high frequency fretting wear tester was designed for this experiment by KAERI. After the experiments. the wear volume and the shape of wear contour were measured by the surface roughness tester. Tribologically transfonned structures(TTS) were ana lysed by means of optical and scanning electron microscopes to identify the main wear mechanisms. The results of this study showed that the wear volume were increased with increasing slip amplitude. and the shape of wear contour was transfonned V-type to W-type. Also. it was found that the critical slip amplitude was I 68t/m. These phenomena mean that wear mechanism transformed partial slip to gross slip to accelerate wear volume. The wear depth increased with an increase of friction coefficient due to increase of nomlal load and frequency. The fretting wear mechanisms were believed that. after adhesion and surface plastic deformation occurred by relative sliding motion on the contact between two specimens. TTS creation was induced by surface strain hardening and wear debris were detached from the contact surface which were produced by the micro crack propagation and creation.

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Abstract

1.서론

2.실험방법

3.실험결과 및 고찰

4.결론

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