Spectral analysis of metals and alloys: principles and applications
The quality of metals and alloys directly determines the reliability and durability of the final products. It is widely used to accurately determine the chemical composition of materials in industry and science spectral analysis of metals and alloys ==1. This method provides fast and reliable data on the concentrations of both major components and impurities.
Contents of the article:
Operating principle and types of analysis
The method is based on the study of the emission or absorption spectra of atoms of a substance. When exposed to external energy, atoms go into an excited state, and when they return to a stable level, they emit light quanta with characteristic wavelengths.
There are two main types of spectral analysis:
- Emission analysis: The sample is exposed to a high temperature source (spark, plasma, laser), which results in the emission of a spectrum of radiation.
- Atomic absorption analysis (AAS): Atoms of the sample, transferred to vapor, absorb radiation from a special lamp with a known spectrum. The amount of light absorbed is proportional to the concentration of the element.
Key advantages of the method
Spectral analysis has replaced many chemical methods due to a number of undeniable advantages. The main advantage is the high speed of obtaining results. Analysis of one sample takes from 20 seconds to several minutes.
The method is characterized by good accuracy and low detection limits, which makes it possible to detect even trace amounts of impurities. In addition, it is a relatively non-destructive test: when using spark or laser effects, damage to the sample is often minimal.
Areas of application
The method is in demand in all industries related to metallurgy and metalworking. It is used for incoming control of raw materials, operational regulation of the composition of the melt during the smelting process, sorting of scrap metal, certification of finished products and diagnosis of equipment failures.
Thus, accuracy, speed and versatility make this tool indispensable for ensuring standards. To ensure that the material complies with technical specifications and regulations, the most effective solution remains a modern metal spectral analysis
