Abstract
To clarify the wear mechanism more accurately, it is the most effective to observe the moment when wear has just caused. In-situ observation methods with SEM and CCD camerais were reported as a typical try. However, it is an observation only in front of the pin test specimen. Moreover, if the counterface is made of a transparent material, the combination of the test specimen subjects to considerable restriction. In this study, we constructed a new in-situ observation system with CCD camera and micro-flash named the Live Observation System (LOS). This system enables to visualize the change of the worn surface every slide. We tried to estimate the volume loss from the width of wear track obtained by this system. As a result, we can know the change of wear process every slide and the volume loss without stopping wear test.
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