Replaces human estimation with exact pixel-counting algorithms.
ASTM E2109 quantifies porosity strictly based on the light reflectivity from a metallographically polished cross-section. It describes two distinct approaches:
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ASTM E2109-01 is a standard test method published by ASTM International. Its full title is
ASTM E2109-01 remains the industry benchmark for porosity measurement in thermal sprayed coatings. Whether you need quick manual comparisons for routine quality checks or automated analysis for critical applications, this standard provides the framework you need for reliable, repeatable results. This standard is likely about "Standard Test Method
[Sample Cutting] ➔ [Precise Polishing] ➔ [Microscopic Imaging] ➔ [Threshold Setting] ➔ [Data Reporting]
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This standard provides a standardized procedure for researchers and quality control professionals to quantify the amount of empty space (porosity) within a coating. Because porosity significantly affects the mechanical properties, corrosion resistance, and thermal conductivity of thermal spray coatings, accurate measurement is critical. Key Content Sections