What aspects does physical and chemical testing include?

Physical and chemical detection includes chemical analysis, physical test and metallographic examination.

Physical and chemical detection is a comprehensive test and analysis of materials through chemical analysis, physical test and metallographic examination. Chemical analysis is mainly used to determine the composition of materials, including elemental composition and compound content. The commonly used methods are spectral analysis, mass spectrometry and chromatographic analysis. Physical testing is to test the mechanical, thermal and electrical aspects of materials, so as to obtain the physical performance parameters of materials, such as hardness, strength, yield point, plasticity and so on. Metallographic examination is to observe and analyze the microstructure of metal materials, including microscopic observation, corrosion test, grain size measurement and other methods to evaluate the metallographic structure characteristics and properties of materials.