The goal is usually to have a low percent relative accuracy, indicating that the sample is homogeneous and the operator did a precise job. 5. Advantages and Limitations Advantages Low Cost: Requires basic metallographic equipment.
If the grid intersection falls directly on the boundary or interface between the phase of interest and the matrix. astm e562-19e1
Human error increases dramatically due to eye strain. The 2019 version supports modern digital integration where manual clicks are registered on a screen rather than forcing operators to look through an optical eyepiece for extended periods. 8. Common Pitfalls and Best Practices The goal is usually to have a low
: Evaluating the volume of voids or pores in powder metallurgy components, thermal spray coatings, or additive manufacturing parts. If the grid intersection falls directly on the
Generally, at least 10–20 fields should be measured to ensure reliability.