Metallography is the science of setting up a sample of a metal or an alloy to undergo a series of tests and observations. It includes an analysis on the physical and chemical behavior to reveal the components of the sample. This could be done through grinding, etching and polishing. After the heavy preparation, the metal or alloy could be analyzed with the use of a metallographic microscope. An expert in management and operation of this tool can immediately determine the properties of the sample as well as knowing the process in separating some of its components for a specific objective.
Definition of a metallographic microscope
A metallographic microscope, or simply known as a metallograph is a high powered tool ideal for the inspection of metals and alloys. It may be a monocular, binocular, or trinocular. Its objectives on the turret consists a variety of magnifications that could be rotated whichever is preferred. Most magnifications range from 100x to 1000x. A high magnification requires an objective to be immersed in oil combined with a drop of immersion liquid that seeps through the specimen to eradicate the presence of air between the specimen and the objective lens.
Generally, there are two types of frames on this microscope. It’s either an inverted or upright. An inverted frame allows the user to examine the visual images of the specimen from the bottom of the slide while an upright frame means that the user has to observe the specimen from above the slide. It is capable of producing an image of a smooth metallic, ceramic and any other polished surfaces which are impossible for other types of microscopes. Using its highly specialized illumination system, it permits light to pass through the microscope objective lens, reflects off the metallic sample and back to its eyepieces. That is why it becomes a good light provider for the microscopist since it would allow the objective to be as close as possible to the exteriors of the sample.
This microscope is used in common applications for science and metallurgy studies of metal properties and structures, thorough inspection and quality control, metal and alloy analysis and the assessment of other related fields of work especially in the area of business requiring examinations on the variety of metallic materials used in the industry to maintain a high quality of products.
The must-have features of a metallographic microscope
So, what must be the basic features of this type of microscope? Such inquiries are important in selecting the most apt. One of the major features this microscope must have is its application. It must have an all-in-one package capable of producing extremely accurate images for all types of examination. The user must be able to perform several configurations to ensure that the specific aim is received and gained.
Accuracy is also a very important matter in the field of microscopes. Although it may be a matter of the user’s control to have the precise image he wants, it could also depend on the quality of the product. The inverted type of metallographic microscope could provide a more precise and definite image because of its firm foundation with an immunity from vibrations. Other features should also include modern computer interfaces, mechanical stages, a fine digital display, and an image analysis processing software.
A good metallographic microscope must also be a dependable tool in the study of the different metallic samples, their properties, and their physical and chemical behaviors. Accessible ports must be present as means of transmitting the recorded images to CCTV monitors, digital cameras, and computers. It should also allow the replacements of the original components for upgrade purposes and improvement of imagery. A high optical performance should also be an essential attribute. It could be determined through testing its resolution and illumination.
This tool ought to be user-friendly too. Commands must be controlled directly to the buttons for an easy manipulation. Although acquiring the best features of this tool may assure getting a reliable performance and outcomes, the user’s comfort and convenience may as well be considered. It may perhaps become the best buddy in work too. Choosing what’s best is up to the user. Questions regarding the quality of the microscope is important in the selection of a metallographic microscope must not be overlooked. Getting advice from microscope experts is also recommended. Although basic research is enough, there could be things which are still unknown. Thus, basic knowledge will provide some help together with the advices from such experts will assist in opting for the finest metallographic microscope.
