Fischer microhardness

The Fischer microhardness test is a widely used method in materials science to determine local hardness values of small areas on a workpiece surface. In contrast to conventional Vickers or Knoop microhardness testing, the Fischer method uses a special indirect approach.

The principle of the Fischer microhardness test is based on the elastic deformation of a specimen by a spherical tip that is pressed onto the surface of the material. As the indentation process takes place, the force and indentation depth are continuously measured and the resulting load-indentation depth curve is recorded. By evaluating this curve, local hardness information can be obtained.

The Fischer microhardness test offers the advantage that it can also be used on small sample areas, which is particularly important for thin coatings or microstructured surfaces. In addition, the method allows precise characterization of the hardness of small components or material regions.

This technique is used in various industries, including quality control of coatings, semiconductor materials and metallic components. In addition, Fischer microhardness testing is of interest in the research and development of new materials, as it provides insights into local hardness variations and material changes at the microscopic level. Overall, Fischer microhardness testing helps to obtain precise information about the mechanical properties of materials and thus improve the performance and reliability of components.