The detection of start porosity in welds comparison of dye penetrants over similar penetration times & comparison of dye penetrant inspection against magnetic particle inspection over a range of temperature (IM-MF-062)

Currently, when weld repairs are carried out, the weld is checked for defects by using a dye penetrant method of non-destructive testing. This method is time consuming and therefore is expensive. Types of defect which could be anticipated are lack of fusion, start porosity and inadequate removal of slag. ...