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: The complete standard is available for purchase and download directly from the ASTM International official website . astm e2109-01 pdf
Follow a rigorous metallographic polishing sequence. The final surface must be scratch-free and represent the true internal structure of the coating. 4. Digital Image Analysis Procedure This public link is valid for 7 days
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The primary purpose of ASTM E2109-01 is to provide a reliable, standardized way to measure the area percentage of porosity in a metallographic cross-section of a thermal sprayed coating. To be valid, the specimens must be prepared in accordance with , which outlines the recommended procedures for sectioning, mounting, grinding, polishing, and etching thermal sprayed coatings to reveal their true microstructure without introducing artifacts.
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