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Measurement of pearlite interlamellar spacing in hypereutectoid steels
Authors:AM Elwazri  P Wanjara  S Yue
Affiliation:

aDepartment of Metals and Materials Engineering, McGill University, 3610 University Street, Montréal, Quebec, Canada H3A 2B2

bNational Research Council of Canada, Institute for Aerospace Research, Aerospace Manufacturing Technology Center, 5145 Decelles Avenue, Montréal, Quebec, Canada H3T 2B2

Abstract:In hypereutectoid steels, determination of interlamellar spacing is essential to microstructural characterization, since both static and dynamic properties have been related to the pearlitic structure. Generally, quantitative analysis of the size of a pearlite colony and its interlamellar spacing is performed using optical and electron microscopy techniques. In this work, laser scanning confocal and field emission scanning electron microscopes were used to examine interlamellar spacing in isothermally transformed hypereutectoid steels to benefit from increased resolving power and statistical significance capabilities as compared to light optical and transmission electron microscopes, respectively.
Keywords:Hypereutectoid steels  Pearlite interlamellar spacing  FE-SEM  Laser scanning confocal microscopy
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