Results 81 to 90 of about 591 (186)

Investigation and characterisation of surface cracks in metal components using time of flight diffraction (TOFD) technique in comparison to alternating current field measurement (ACFM) technique / Jeffry Jamil

, 2014
This research describes an investigation and characterisation of Time of Flight Diffraction (TOFD) technique when it interacts with surface defects in metal component. Four steel plates of thickness 19 mm were used in this study.
Jamil, Jeffry
core  

Images of Flaws in Generator Retaining Rings Using SAFT Reconstruction of TOFD Data

, 1990
Retaining rings are assembled onto each end of electric generator rotors to support the rotor end-turn windings against rotational forces. They are attached to the ends of the slotted portion of the rotor body with an interference fit.
MacDonald, Douglas, Douglas E. MacDonald
core   +1 more source

The use of frequency averaging techniques to enhance TOFD images from austenitic welds

, 1986
(TOFD - time-of-flight diffraction)Available from British Library Document Supply Centre- DSC:9091.9(AERE-R--12159) / BLDSC - British Library Document Supply CentreSIGLEGBUnited ...
UKAEA Atomic Energy Research Establishment, Harwell (United Kingdom). Materials Physics and Metallurgy Division, Silk, M.G., Hillier, M, Bainton, K.F.   +3 more
core  

Time of flight diffraction and imaging (TOFDI) [PDF]

Time of flight diffraction and imaging (TOFDI) is based on time of flight diffraction (TOFD), adding cross-sectional imaging of the sample bulk by exploiting the scattering of ultrasonic waves from bulk defects in metals.
Petcher, P. A.
core  

Modelling of waves propagation on irregular surfaces using ray tracing and GTD approaches: Application to head waves simulation in TOFD inspections for NDT

, 2014
Conference of 12th Anglo-French Physical Acoustics Conference, AFPAC 2013 ; Conference Date: 16 January 2013 Through 18 January 2013; Conference Code:104840International audienceThe Time of Flight Diffraction (TOFD) technique is a classical ultrasonic ...
Darmon, Michel, Chatillon, Sylvain, Deschamps, Marc, FERRAND, A., DARMON, M., Ferrand, Adrien, CHATILLON, S.   +6 more
core   +1 more source

Mode-converted waves and D-scans for flaw sizing and characterisation in ultrasonic time-of-flight diffraction (TOFD)

, 2011
Ultrasonic time-of-flight diffraction (TOFD) is known as a reliable non-destructive testing technique for the inspection of weld defects in steel structures.
Al-Nuaimy, W, Al-Ataby, A
core  

Reliability Analysis of PAUT Based on the Round-Robin Test for Pipe Welds with Thermal Fatigue Cracks. [PDF]

Materials (Basel), 2023
Kang D, Choi YM, Lee DM, Kim JB, Kim YK, Park TS, Park IK.   +6 more
europepmc   +1 more source

POD generator project: a numerical assessment of the inspection of fatigue cracks using TOFD

, 2009
Risk based inspection strategies rely on detailed knowledge of the performance of inspection techniques. The objective of the "POD generator" project is to develop a numerical modeling approach to assess the effectiveness of specific inspection ...
Stelwagen, U., Volker, A.W.F., Bloom, J.G.P., Mast, A.   +3 more
core  

Application of signal processing techniques to ultrasonic ToFD testing of austenitic welds [PDF]

, 2010
The desired properties of austenitic steels lead to their numerous applications in many industries. Welded austenitic materials have columnar grains, anisotropic elastic properties, and a heterogeneous structure.
Tabatabaeipour, Seyed Morteza, Honarvar, Farhang   +1 more
core  

A New Insight on Phased Array Ultrasound Inspection in MIG/MAG Welding. [PDF]

Materials (Basel), 2022
Alonso J, Pavón S, Vidal J, Perdigones J, Carpena I.   +4 more
europepmc   +1 more source