Structure of Metals (Metallography) to study the structure of the metal by microscopy (Microscope) to determine what kind of (Phase) fragmentation of the sector. As well as the nature and size of the crystal structure. You can also note the state of the metal as a solid solution or pure compounds. The elements of such a dramatic effect on the mechanical and physical properties, 22
of the metal. The microscopic examination Check the internal structure of microscopic metal. Could determine macroscopic structures. And microstructure microscope for viewing the internal structure of the metal. (Metallurgical microscopes) is widely used, there are 2 types of microscope optical million (Optical microscopes) and microscope electron (Electron microscopes), but here are the only microscope optical and
principles and components can. importance of microscopy for the structure of the metal and optical uses the principle of light sources (Light source) through the pipe Illuminata Nations (lllumination tube) into contact with the glass. Reflective (Plane glass reflector) the deduction of light to the objective lens. Light is incident on the surface of the specimen. Then reflected back to the objective lens (Objective lens) through a reflector to the eyepiece (Eyepiece lens) and incident light to the eyes. As a visible image of the microscopic structure of Figure 2.15 shows the operation of the optical microscope, and Figure 2.16 shows the image viewable from the microscope. As light strikes the specimen through etching with a grain (A), B (B), C (C) A and C, the grain angle perpendicular to the optical ass. The grain Tabitha inclined to leave the light. Thus, A and C, which makes the grain perpendicular to the light, the light is reflected back to Las objective lens is so visible grain and grain, it has a light. While grain breakfast with the inclination to leave the light, the light reflected off the part of the objective lens. Apply to visualize the dark grain bed. By Step The following tests
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