A unique feature of ASTM E562-19e1 is its built-in statistical framework. It doesn't just give a number; it allows the user to calculate the and the Relative Accuracy (RA) .
Metallographic specimens are ground, polished, and often etched to reveal the different phases under a microscope.
Performance depends on a precise 50/50 balance between ferrite and austenite. astm e562-19e1
The operator counts how many grid points fall directly on the "phase of interest" (e.g., how many points hit a martensite island). Full point: Counts as 1 if it is clearly inside the phase.
Many researchers use ASTM E562-19e1 to "calibrate" or verify their automated software settings to ensure the computer is seeing the same volume fractions as a human expert. 5. Typical Applications A unique feature of ASTM E562-19e1 is its
) is calculated by dividing the total number of "hits" by the total number of points applied across all fields. 3. Statistical Confidence and Precision
Half point: Counts as 0.5 if it falls exactly on the boundary. Performance depends on a precise 50/50 balance between
When high-contrast images are available, allowing for much faster processing of large datasets.
