This method requires the use of a computerized image analyzer. The software quantifies the area percentage of porosity based on differences in light reflectivity from the polished cross-section. Pores typically appear dark against the brighter metallic coating matrix. The analyzer is calibrated and then used to scan multiple fields of view to calculate an average area percentage.
Microscopic counting strains the eyes over long shifts. astm e2109-01 pdf
You cannot legally download ASTM E2109-01 for free. ASTM standards are copyrighted documents, and obtaining them requires purchase through authorized distributors. Here are the legitimate options: This method requires the use of a computerized
Ask your client for the specific revision listed in their project specification or Quality Management System (QMS). If they wrote "E2109-01," buy that. If they wrote "E2109-01(2019)," buy the reapproved version. Most accreditation bodies accept the reapproved version as equivalent unless the -01 version contains a specific appendix that was removed later. The analyzer is calibrated and then used to
The standard outlines specific laboratory procedures to evaluate oriented or banded microstructures. It translates visual, qualitative observations into objective, reproducible numbers. While originally developed with steel alloys in mind, the mathematical principles apply to other layered materials.