basic introduction

Under the optical microscope, the science of studying the regularity of the morphology of metal materials is called "metallography". Metallographic analysis is an indispensable and important means for testing material organization and ensuring product quality. With the development of science and technology, especially optical technology, the performance of optical microscopes has gradually expanded, such as the application of dark field, polarized light, phase contrast, differential interference, infrared light and ultraviolet light, etc., which has improved the clarity and resolution of metallographic structure. .

Analysis items and standards

Test process

For metallographic analysis, first of all, samples should be prepared according to various inspection standards and regulations. If they are not prepared properly, artifacts may appear, which can lead to wrong conclusions. Therefore, the preparation of metallographic samples is very important. Generally, the preparation steps of metallographic samples are: sampling, inlaying, labeling, grinding, polishing, and etching. But not every metallographic sample preparation must go through the above steps. If the shape and size of the selected sample are suitable for holding and grinding, no mosaic is necessary. If non-metallic inclusions in metallic materials or graphite in cast iron are inspected, no etching is necessary. In short, the sample preparation steps should be determined according to the inspection purpose.

Our advantage

1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.