02:41 Dec-25-2007 S.V.Swamy Engineering, - Material Testing Inspection & Quality Control Retired from Nuclear Fuel Complex , India, Joined Feb 2001 782
Re: ut ----------- Start Original Message ----------- : in a casting steelmaterial, by using angle and normal probe what type of defects we will give ------------ End Original Message ------------
Ulrasonic testing is ideally suited for detection of planar disconitinuities (like cracks) that are perpendicularly oriented to the beam direction. Also, the presence of porosity and piping etc. can also be detected. Presence of foreign material (slag etc. entrapped) may also be detected.
Your question is too general. There are specific codes and standards that deal with the most appropriate NDT methods and techniques for different castings. In addition to UT, you may also need to consider Radiographic Testing for some volumetric discontinuities.
Re: ut hi friend, I will suggest u to use angle beam probe. normally selection of probe is depend upon application&accuracy required. when u will use normal probe,may be the defect parallel to sound beam cann't detected this can be avoided by using angle beam probe. dear in UT there is not any specific type of probe for specific material being tested. The probe remain same but its frequency will change so that it can enter in more dense material. the effect of change of material , u will find in graph of UT i.e. TOF ----------- Start Original Message ----------- : : in a casting steelmaterial, by using angle and normal probe what type of defects we will give : What type of material is it? Carbon Steel or Austenitic Steel? ------------ End Original Message ------------