Ultrasonic Testing on Austenitic Cast Steel

Ultrasonic Characterization of Austenitic Stainless Steel in Thermal Variations

This work focuses on the ultrasonic characterization and hardness of Austenitic stainless steel in thermal variation. The sample which was heat treated at 1050 o C has the highest hardness value and plays a dominant role in dispersion of carbides. Shear wave velocity and hardness show similar trend in variation with temperature. The effect of volume expansion would be to decrease the elastic co...

Ultrasonic Testing of Steel Castings

Calibration and Reference Blocks ................................................................. 7 Longitudinal Wave Probes ............................................................................. 7 Transverse Wave Probes ............................................................................. 10 Measurement of Steel Thickness ...........................................................

Ultrasonic Characterization of Cast Austenitic Stainless Steel Microstructure: Discrimination between Equiaxed- and Columnar-Grain Material – An Interim Study

Ultrasonic testing for the internal quality evaluation of cast steel products

A new method has been developed for the inspection of internal quality of cast products. The ultrasonic measurement technique “HD scan” for the evaluation of internal quality defects in the cast product sample needs a less surface processing in comparison to the etching procedure. The clean and safe technology offers threedimensional views into the sample, providing higher representative inform...

Interval Dependant Thresholding based De-noising of Ultrasonic TOFD Signals from Austenitic Stainless Steel Welds

Austenitic stainless steel has structural values in almost all industries. It is one of the most widely used materials. Qualitative assessment of such important components is of greater importance in very sensitive applications such as nuclear reactor vessels. Ultrasonic based Time of Flight diffraction is a reliable technique in testing the materials for many types of defects in welds. Echo si...