Metal materials, including pure metals, alloys, metal materials, intermetallic compounds and special metal materials, are widely used in various fields, including aerospace, general equipment, computer hardware and other fields. With the growing demand for metal materials in various industries, some complex metal materials emerge. These high-end and complex metal materials usually have relatively good performance, and the metallographic characterization analysis of these metal materials can deeply understand the composition elements and internal structure of the materials, and provide evidence for us to better develop and design complex metal materials. Through the analysis of the chemical elements of metals, the metal brand, its physical properties and corrosion resistance are determined. At present, there are the following test methods for metal composition analysis: spectrophotometry, titration analysis, atomic spectrometry, X-ray fluorescence spectrometry, electrical analysis, inductively coupled plasma mass spectrometry, laser-induced plasma spectroscopy, inductively coupled and other ionomer atomic emission spectrometry, graphite furnace atomic absorption spectrometry.