metallurgical-analysis

# Metallurgical Analysis Skill ## Purpose The Metallurgical Analysis skill provides specialized capabilities for characterizing metallic materials through metallographic techniques, enabling systematic evaluation of microstructure, grain size, phase distribution, and inclusion content per industry standards. ## Capabilities - Metallographic preparation protocol selection - Etching reagent selection for different alloys - Grain size measurement (ASTM E112, intercept method) - Phase fraction quantification (point count, image analysis) - Inclusion rating (ASTM E45) - Banding and segregation assessment - Prior austenite grain boundary revelation - Weld microstructure evaluation (HAZ mapping) ## Usage Guidelines ### Sample Preparation 1. **Sectioning** - Select appropriate cutting method (abrasive, EDM, precision saw) - Minimize heat input to prevent microstructural changes - Identify orientation relative to processing direction 2. **Mounting** - Choose mount type (hot compression, cold setting) - Add conductive filler for SEM/EBSD samples - Consider edge retention requirements 3. **Grinding and Polishing** - Follow systematic grit progression (120 to 1200 to diamond) - Use appropriate lubricant and rotation direction - Verify scratch-free surface before etching ### Etching Selection | Alloy System | Etchant | Purpose | |--------------|---------|---------| | Carbon steels | 2% Nital | General microstructure | | Stainless steel | Vilella's | M...