Study of the structure of the metal (Metallography). The structure of the metal using the microscope (Microscope) to determine the type of Civil (Phase) dispersion of the sector, as well as the style and size, crystal structureA compound, or pure, various elements such that significantly affect the mechanical and physical properties 22
.Principles of metal microscopic examination. A microscope check structure within the metallic body. A check macrostructure. And microstructure microscope for structure within the metal (Metallurgical.Widely used, there is 2 type microscope of TiC terminal (Optical microscopes) and electron microscope แบบอิ (Electron microscopes). But in this will say only a microscope of tic.
.The principle and components of importance of the microscope for structure in metal model of tic and use of light from a source (Light. Source) through a pipe IL illumination (lllumination tube) to interfere with reflective glass (Plane glass reflector).Broken nets to the objective lens. The light is incident on the surface, with the test specimen It reflects back to the objective lens (Objective lens) through the reflective glass to the eyepiece (Eyepiece lens) and the light incident on the eyes.As Figure 2.15 show the work of a microscope of tick, and figure 2.16 display that appears to be from a camera microscope. When light hits a test piece through the etching, which is a A), grain (b), (BC (C) grain and C Ta perpendicular angle with the La light. The grain beat making inclined with the La light. So the grain A and C, which apply a perpendicular angle with the La light applied to light reflected back to the objective lens can be seen much grain and grain C has light.Apply visual grain B dark. The testing following
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