Microscopic analysis is the use of high-end analytical equipment such as optical microscope and electron microscope to observe the composition of metals and the types of tissue compositions, as well as their relative quantity, size, morphology and distribution. The performance of the material depends on the internal structure state, and the structure depends on the chemical composition and processing technology, heat treatment is an important process means to change the structure, so microscopic analysis is an important means of quality inspection and control of materials and heat treatment. Microanalysis involves the microscopic analysis of many sample types, including metallurgical and geological samples, electronic materials, ceramics, and various surface contaminants.
Under the optical microscope, the science of studying the structure and morphology of metal materials is called "metallography". Metallographic analysis is an indispensable and important means to detect the structure of materials and ensure product quality. With the development of science and technology, especially optical technology, the use performance of optical microscope has gradually expanded, such as darkfield, polarization, phase contrast, differential interference, infrared light and ultraviolet light applications, etc., which have improved the clarity and resolution of metallographic structure.
Inspection Items:
Metal material inclusions, grain size, metallographic structure, coating thickness, microhardness, macroscopic low magnification, sulfur imprint inspection.
Microscopic observation of surface topography.
Microscopic regional structure analysis (magnification 5-1,000,000-fold).
Phase structure and texture analysis.
Fracture topography analysis.
Micro-component analysis.
Thickness measurement of surface metal overlays;
Microhardness test.
Elemental qualitative and semi-quantitative analysis of the microscopic region;
Defect analysis of metal material processes and products, as well as failure analysis of metal parts.
Analysis of residual stress generated during heat treatment, machining, welding, shot peening, rolling and other treatment processes of gears, bearings, rolls, crankshafts, camshafts, pressure vessel pipes and other parts.
Residual austenite content in iron and steel materials.