Professional, reliable laboratory practice and advisory

Intergranular Attack and End Grain Pitting


Aerofin Laboratories can conduct inter granular attack (IGA) and end grain pitting (EGP) evaluation.

IGA is a form of corrosion occurring at grain boundaries within a metal, where grain boundaries are more susceptible to corrosion.

EGP is localised corrosion resulting in a cavity or pit extending from the surface into the metal.

IGA and EGP can occur during various stages of processing. To assess the impact during processing test pieces require treating and analysing. Alongside analysis for IGA and EGP we can supply test pieces ready for processing.

Materials can differ in susceptibility to corrosion. Testing a materials  susceptibility to IGA and EGP can be conducted to ensure suitability of material for intended purpose or further processing.

We can provide micrographs showing evidence of IGA and EGP

Test Methods include:

ASTM F 2111

Aerofin Laboratories can evaluate process suitability
and effectiveness for your chosen application.