Abstract :
The detection of small and thin solid slag inclusions in a material is, in general, difficult and it may become a critical task when the component under inspection has complex geometry and/or small dimensions. The attention of this note is focused on the use of back-side heating lock-in thermography for nondestructive evaluation of components with thin inclusions.
Keywords :
infrared imaging; nondestructive testing; back-side heating lock-in thermography; complex geometry; infrared thermography; materials nondestructive evaluation; small dimensions; solid slag inclusions; Acoustic materials; Cameras; Conducting materials; Frequency; Heating; Lamps; Photothermal effects; Solids; Surface waves; Thermal conductivity; Infrared thermography; nondestructive evaluation; optical lock-in; phase angle; rear heating;