Ultrasonic time of flight diffraction (TOFD) for sizing defects is based on the time of flight of
the diffracted echo that is generated when a longitudinal wave is incident on a crack tip. This …

This paper deals with an experimental study for evaluation of TOFD technique for
determination of size of the surface-breaking cracks. It extends the results presented in a …

In this paper, an ultrasonic non-destructive measurement technique is proposed to detect
and size cracks in engineering materials. This measurement technique is based on Time of …

Abstract Introduction Non-Destructive Testing (NDT) is widely used in industry, especially in
the evaluation of mechanical parts and structures for identifying defects, corrosion, flaws or …

Effectively sizing inclined cracks inside material is a difficult issue in ultrasonic non-
destructive testing. To size the length, depth and orientation of inclined crack, a modified …

The time-of-flight-diffraction (TOFD) ultrasonic detection method has been widely used in
defect size assessment. This paper presents a method using cross correlation to improve the …

Time of flight Diffraction technique is an advanced ultrasonic NDE methods, adopted in weld
integrity testing. During the Time of flight Diffraction (TOFD) inspection of the stainless steel …

Prevention of industrial disasters is a major concern. Nondestructive testing as a reliable tool
has played an effective role in this regard. Ultrasonic testing of heavy press-sure vessels is a …

Time of flight Diffraction technique is an advanced ultrasonic NDE method, adopted in weld
integrity testing. A better testing is being sought, particularly at elevated temperatures. With …

ABSTRACT Three-dimensional (3D) non-contact optical methods for surface inspection are
of significant interest to many industrial sectors. Many aspects of manufacturing processes …