fraktografie

Fraktografie is a technique used in materials science and engineering to study the fracture behavior of materials. It involves the examination of the surface of a fractured material to understand the mechanisms and causes of failure. This method is particularly useful in failure analysis, quality control, and research and development of new materials.

The process begins with the preparation of a fractured specimen, which is then examined using various microscopy techniques such as optical microscopy, scanning electron microscopy (SEM), or transmission electron microscopy (TEM). The examination typically involves observing the fracture surface for features such as dimples, cleavage facets, and river patterns, which can provide insights into the type of fracture (ductile, brittle, or fatigue) and the conditions under which it occurred.

Fraktografie is a non-destructive technique that does not require the material to be removed from its original structure, making it suitable for in-situ analysis. It is widely used in industries such as aerospace, automotive, and manufacturing to ensure the reliability and safety of components and structures. The technique is also valuable in academic research, where it helps in understanding the fundamental mechanisms of material failure and in developing new materials with improved fracture resistance.