Testing Technician

Metallographic Sample Preparation & Analysis Perform full-process metallographic sample preparation including cutting, mounting, grinding, polishing, and etching Conduct microstructural observation, grain size rating, phase content analysis, and defect identification (e.g., porosity, inclusions, cracks) using metallurgical microscopes Analyze weld penetration depth, heat-affected zone, and weld microstructure of welded joints Prepare and archive metallographic specimens; maintain metallographic…