Verification of the microstructure of surface treatments

METALLOGRAPHIC TESTS OF FERROUS AND NON FERROUS MATERIALS

Purpose
A microstructural analysis is performed in order to evaluate the microstructure in a metal alloy.

Description
The observation is made at different magnifications depending on the observation to be made.

What is it for?
The microstructure of a material allows to evaluate the state of supply and the possible presence of metallurgical defects.

On what this analysis is performed / sampling
The sample should be collected from a section of the piece under analysis in order to include both an observation at core and on the surface; the ideal would be to obtain multiple sections in massive and thin areas in order to observe how the characteristics vary as a function of thickness.
To perform this analysis it is sufficient to have samples of small dimensions (a few mm2), although it would be ideal performing the thest on most representative areas.

Reference Standards
UNI3137:1965 UNI4227:1973 ASTM E3-01 (2007) ASTM E 407-07