Automatic Measurement of Pearlitic Interlamellar Spacing with Computer Image Processing

抄録

For metallurgical studies or routine control of eutectoid steels, it is necessary to perform automatic measurement of pearlitic interlamellar spacing. Various methods, using a combined system of a scanning electron microscope (SEM) and an image analyzer (IA) have been compared and the optimum procedure has been studied. A conversion coefficient from the apparent spacing measured with SEM+IA system to the true spacing has been determined to be 0.9 with a transmission electron microscope observation on thin specimen.