| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of measuring an area rate of a double carbide phase containing V, W and Cr existing in a WC-based cemented carbide. SOLUTION: This method of measuring the area rate of the double carbide phase in the WC-based cemented carbide has the first-the fifth means, the first means is a means for preparing a specular finished face of the WC-based cemented carbide, the second means is a means for collecting a line profile of the double carbide phase by a mapping function of an EPMA, the third means is a means for measuring a form and a dimension value of the double carbide phase by a TEM, the fourth means is a means for setting a threshold value of the line profile of the double carbide phase, based on the line profile and the dimension value, and the fifth means is a means for computation-finding the area rate of the double carbide phase, by binarizing a plurality of images by the threshold value, and by processing the images. COPYRIGHT: (C)2007,JPO&INPIT
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