What are the parts of a metallurgical microscope?

The Metallurgical Microscope consists essentially of an optical system and an illumination system. The optical system, includes the eyepiece lens, relay system and the objective lens. Typical applications are grain sizing, inclusion counts, layer thickness assessment and phase determination.

What is a metallurgical microscope?

Metallographic microscopes are used to identify defects in metal surfaces, to determine the crystal grain boundaries in metal alloys, and to study rocks and minerals. This type of microscope employs vertical illumination, in which the light source is inserted into the microscope tube…

What is the structure of the microscope?

A general biological microscope mainly consists of an objective lens, ocular lens, lens tube, stage, and reflector. An object placed on the stage is magnified through the objective lens. When the target is focused, a magnified image can be observed through the ocular lens.

What is the difference between metallurgical microscope and biological microscope?

A simple answer is that a metallurgical microscope is another type of light microscopes and unlike a biological microscope it uses a reflected white light. Obviously the nature of samples is different for such a use, i.e. a metal, semiconductor or plastic rather than a biology slide, cell, living microorganism etc.

Which lens is used in metallurgical microscope?

Using a specialized design featuring a high-resolution HR lens, a 4K CMOS image sensor and illumination technology, KEYENCE has developed a whole new method of microscopy. Minute irregularities on the surface can be detected by analyzing the contrast in an image captured using multi-directional illumination.

What is upright metallurgical microscope?

Upright metallurgical microscopes are used to view samples that will fit on the microscope stage. An inverted metallurgical microscope would be used to view larger parts, as the objective lenses are located beneath the stage and allow for placing heavy mechanical parts directly on the stage above the objectives.

What is magnification of metallurgical microscope?

Metallurgical microscopes may look similar to compound biological microscopes, but they differ in a number of ways. Using a metallurgical microscope allows the user to view samples at high magnification (up to 500x and 1000x), without any light passing through the sample the way a biological sample is viewed.

What is a metallurgical objective?

Metallurgical objectives are used to view opaque specimens. These opaque specimens are viewed with a metallurgical microscope used in metallurgy, manufacturing, engineering, and industrial applications.

What is the function of eyepiece in a microscope?

The eyepiece, or ocular, magnifies the primary image produced by the objective; the eye can then use the full resolution capability of the objective. The microscope produces a virtual image of the specimen at the point of most distinct vision, generally 250 mm (10 in.) from the eye.

What does the base do on a microscope?

Base: The bottom of the microscope, used for support Illuminator: A steady light source (110 volts) used in place of a mirror.

What is a inverted metallurgical microscope?

Inverted metallurgical microscopes allow observation of opaque objects that are too large to place under an upright metallurgical microscope. Metallurgical microscope samples are placed on an inverted metallurgical microscope and allow for inspection of grain size and the state of the metals.

How do metallurgical microscopes work?

Metallurgical microscopes illuminate objects from above, either with an external light source or with that light travels through the magnification objectives using beam splitters. This lighting technique illuminates the entire object without creating distracting or unnecessary reflections.

What do you mean by microstructure of metals?

Microstructure of Metals. Microstructure is defined as the structure of a prepared surface or thin foil of material as revealed by a microscope above 25× magnification.The microstructure of a material (which can be broadly classified into metallic, polymeric, ceramic and composite) can strongly influence physical properties such as strength,

How to study the alloy microstructure?

Different microscopy techniques are used to study the alloy microstructure, i.e., microscale structure of grains, phases, inclusions, etc. Metallography developed from the need to understand the influence of alloy microstructure on macroscopic properties.

What is the maximum magnification of light microscope for metallography?

Once metallographic preparation is complete, metal grain structures can be visibly analyzed under a light microscope. This typically occurs at magnifications of 25x to 1000x, which corresponds to the limits of traditional light microscopy.