In most breakdowns and failures where fracturing has occured it is important to examine the surface of a fracture in order to find the cause of fracturing. In examinations of the surface of fracture you try to establish the type of fracture, where the fracturing began (fracture initiation), and to see whether there are defects which could have caused the fracture.

Examinations of the surface of fracture are performed with the naked eye, through optical microscopes (low and high magnifications), and through a scanning electron microscope (SEM).

It is also important to not only study the surface of fracture, but also areas in close connection to the fracture. During the ocular examination we find if there are more indications of the cause for a fracture, such as the occurrence of cracks, corrosion damages, defects or other causes (such as temperature effects).

An examination of the surface of a fracture as well as the areas surrounding a fracture help us in drawing conclusions about the likely cause of fracture. It is also important in the sense that it is the basis for the continued metallographic examination, where sections are taken from pertinent areas, which are then prepared and examined in an optical microscope as well as in SEM, in both etched and unetched conditions.


Lars Andersson
Phone: +46 (0)31-65 64 86