Many people tend to focus on data analysis later in their research on metal materials. As an initial step in the metallographic sample preparation process, many details are often overlooked. Firstly, let's understand the purpose of metallographic sample preparation: in order to display the true microstructure of the sample.


So, in order to achieve such sample preparation results, we must meet some conditions:


For example, because the damaged layer generated during the cutting, inlaying, and polishing processes must be removed (very small scratches left during the polishing process are allowed to exist), for very small scratches generated during the polishing process, they can be removed through corrosion solution corrosion. During the sample preparation process, it is necessary to avoid the occurrence of false images during other sample preparation processes such as detachment of the second phase, pits, rupture of the hard second phase, and plastic deformation of the sample.


During the sample preparation process, appropriate grinding and polishing equipment and consumables should be selected to avoid causing surface roughness (such as surface height changes caused by hardness differences between different components in the alloy material). This situation must be minimized, otherwise it will not be able to focus well when observed under the microscope. Chain Nengjia's imported metallographic consumables are a good choice, such as metallographic sandpaper for grinding and polishing, metallographic polishing cloth, etc

    Metallographic sandpaper: Silicon carbide sandpaper is a high-quality metallographic sandpaper that ensures excellent quality, efficient material removal, and minimal surface damage. It can cover all material grinding requirements, strictly control abrasive particle size, ensure consistent depth and pattern of grinding marks, and prevent sample damage and rework. It can reduce grinding time and ensure minimal surface damage during the grinding process. Due to the limited amount of damage that needs to be removed, the subsequent processing volume can be reduced, saving valuable time for preparing the program and improving work efficiency.

    Metallographic polishing cloth: High quality imported metallographic polishing cloth, also known as polishing fabric, has excellent material removal rate and can easily achieve excellent surface finish. Metallographic polishing cloth with different materials can adapt to various applications of different materials. Specially designed for high-quality sample preparation, choosing this metallographic polishing cloth is definitely the right choice for obtaining the ideal metallographic sample analysis surface.

    After each step of the sample cutting, embedding, polishing, and corrosion process, cleaning, cleaning, and drying work must be carried out to effectively avoid sample damage and oxidation. The last point is to choose suitable metallographic consumables, such as metallographic sandpaper, metallographic polishing cloth, metallographic polishing liquid, Obtain an ideal phase or grain boundary with clear contrast.