Chemical composition is analysed mainly during conformity evalution to determine metals and their alloys actual chemical composition more precisely their chemical elements concentration.
Main Fe-based alloys (steel, cast iron), Cu-based alloys (bronze, brass etc.) and Al-based alloys chemical composition is determined usually with AES method. For smaller specimens it is possible to use induction melting device.
SEM-EDS method is used mostly for material microstructure, coatings or smaller specimens.
Methods for chemical composition analysis:
- Spectral analysis (Atomic Emission Spectroscopy – AES)
- SEM-EDS – Scanning Electron Microscopy with Energy Dispersive Spectroscopy