Count as 0.5 if the intersection falls exactly on the boundary (interface) between the phase and the matrix.
Disclaimer: This article is for informational purposes only. Always use the official, legally purchased standard for industrial testing. If you'd like, I can:
Many university libraries and corporate engineering departments offer internal portal access to the ASTM Compass platform. astm e56219 pdf
A transparent overlay grid is placed over a live monitor screen, a photomicrograph, or integrated into the microscope eyepiece (reticle).
ASTM E562-19 outlines a standardized, manual point-counting procedure to accurately determine the volume fraction of constituents in a solid material's microstructure. The method involves placing a grid over a polished micrograph and counting grid points on specific phases to statistically calculate relative proportions. Read the full standard on the ASTM International website iTeh Standards Count as 0
ASTM E562-19 itself includes a condensed step-by-step guide (Annex A1) to streamline its application. This outlines a clear and logical workflow for obtaining statistically meaningful results:
The specimen must be prepared via standard metallographic techniques (grinding, polishing, and etching) to clearly reveal the constituent to be measured. 2. Equipment Selection If you'd like, I can: Many university libraries
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Provide a list of when performing this test. Recommend microscope configurations for this analysis. Share public link
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