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Inclusion contents in steels, or porosity measurements can be made in a similar way to the measurement of ferrite content in welds.

In order to measure the inclusion content in a material a sample is prepared and polished for microstructural investigation.  Several images are taken from the microstructure and then processed with image analysis software to determine the volume of ferrite in each of the images.  This is then averaged to provide a result.

This process is similar to the wear particle analysis measurements, hence can also provide information about the size range and shape of the ferrite automatically.

This method can also be used for the measurement ferrite content in stainless steels or for general phase analysis and also for porosity measurements in ceramics, or castings or sintered components.

R-DE02-14-01  – Measurement of inclusions (oxides and sulphides) in cast iron from Scaw Metals Group  – click on the link to view the report.

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