Application of Metallographic Microscopy in Related Fields of Materials Science

With the global economy entering a new normal, the domestic material industry must embrace the spring of the industry under the general trend of supply-side reform. From the most traditional black steel smelting to the most popular nanomaterials manufacturing, there are huge business opportunities. Then the quality appraisal of finished materials has become the top issue in the industry.

Metallography uses an optical metallurgical microscope and a stereo microscope. Through the optical magnification of the microstructure of the material and the macroscopic fracture structure, the characterization of the record is studied in order to identify and identify the grain structure and microstructure by the microstructure of the material. Scientific judgments have been made on comprehensive factors such as material process flow, physical properties, failure causes, etc. Scientific research has been conducted on fine metal structures (dislocation dislocations, etc.) and non-metallic inclusions.

Metallographic effect

Research on steel heat treatment process: The principle of steel heat treatment is based on the transformation of steel during heating and cooling. Metallographic technology is an important experimental method for phase change research.

Development of Shape Memory Alloys: Shape memory alloys were also discovered by metallographic analysis.

Product quality control: every link in the production process, from the acceptance of raw materials, the control of processing technology, to the evaluation of the quality of semi-finished products and finished products.

Failure Analysis: It is difficult to completely avoid failures in the form of deformation, fracture wear, and corrosion during the use of mechanical equipment and parts. Use metallographic examination to find out the causes and prevent them.

Accident Analysis: Analysis and evidence of application and fire accidents in the field of fire cause identification have good repeatability, good comparability, and strong intuitiveness.

From the traditional metal industry, the foundry industry, to the automotive industry, the aerospace shipbuilding industry, and related upstream universities and research institutes of all these industries, research institutes are dedicated to metallurgical microscopy studies in materials science, whether it is quality control, failure analysis, The development of new materials or professional porosity cleanliness analysis requires the use of high-quality metallographic microscopes and professional image analysis systems.

Metallographic Microscope Applications

Metallographic examination of ferrous metals, metallographic examination of non-ferrous metals, metallurgical examination of powder metallurgy, microstructure identification and evaluation after material surface treatment.

Material Selection: There is a certain correspondence between the microstructure and the properties of the material, according to which a suitable material can be selected.

Checking: Raw Material Checking and Process Checking

Sampling: The product manufacturing process performs metallographic examination of the semi-finished products to ensure that the microstructure of the product meets the processing requirements of the next process.

Process evaluation: Judging and identifying the qualification of the product process.

In-service evaluation: Provides the basis for the safety, reliability, and service life of parts in service.

Failure analysis: discovery of process and material defects, which provides macro and micro analysis basis for failure analysis.