Scientific Bases of the International Standardization Project "Hot Cracking Tests for Welds"

Microcracks which are hardly detectable by non-destructive test methods represent a potential risk for the reliability of components or structures. More important than improving the postweld failure detection procedures is the improvement of the material-inherent resistance against hot cracking and the optimization of the welding process. This requires respective consistent test procedures which are currently being internationally standardized. The present contribution provides some remarks which might be considered for this standardization project.