Metallographic mainly refers to the use of optical (metallurgical) microscopes and stereo microscopes to analyze the material micro structure, low-magnification tissue and fracture tissue analysis and characterization of the branch of materials, including both the micro structure of the material imaging and qualitative.
Quantitative characterization also includes the necessary sample preparation, preparation, and sampling methods. It mainly reflects and characterizes the phase, the tissue composition of the constituent materials, the number of grains (including sub-crystals that may be present), non-metallic inclusions and even certain crystal defects (such as dislocations), morphology, size, distribution, Orientation, spatial arrangement, etc.
Thanh toán đơn giản
Phương thức thanh toán đa dạng