ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Automatic Measurement of Pearlitic Interlamellar Spacing with Computer Image Processing
H. PetitgandD. BenoitM. MoukassiB. Debyser
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1990 Volume 30 Issue 7 Pages 546-551

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Abstract

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.

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© The Iron and Steel Institute of Japan
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