In-situ Metallography is a specialized non-destructive evaluation technique used to assess the microstructural condition of metallic components without removing them from service. The process involves surface preparation, polishing, etching, and microscopic examination or replication of the material structure. It is widely used to detect creep damage, microstructural degradation, phase transformations, and heat-treatment conditions in critical equipment such as boilers, pressure vessels, turbines, and pipelines. This technique helps plant operators evaluate component integrity, predict remaining service life, and support maintenance decisions while minimizing downtime.
