Time of flight diffraction tofd - Open Access .click

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Tangential Homology for Defect Detection in the Time of Flight Diffraction Method (TOFD) [PDF]

PAMM, 2016
AbstractUltrasonic non‐destructive testing (NDT) techniques are widely used in industry to evaluate properties of a component, material or system without causing any damage. The time of flight diffraction method (TOFD) is regarded as a valuable procedure for the detection of welding defects.
Jose F. Cuenca +3 more
openaire +1 more source

Model-assisted ultrasonic calibration using intentionally embedded defects for in-process weld inspection

Materials & Design, 2021
Automated in-process Non-Destructive Testing (NDT) systems are rapidly gaining traction within the manufacturing industry as they reduce manufacturing time and costs.
Ehsan Mohseni +12 more
doaj +1 more source

Identification of nonregular indication according to change of grain size/surface geometry in nuclear power plant (NPP) reactor vessel (RV)-upper head alloy 690 penetration

Nuclear Engineering and Technology, 2017
During the fabrication process of reactor vessel head penetration (RVHP), the grain size of the tube material can be changed by hot or cold work and the inner side of the tube can also be shrunk due to welding outside of the tube. Several nonregular time-
Kyungcho Kim +5 more
doaj +1 more source

Ultrasonic Flaw Imaging via Multipath Exploitation

Advances in Acoustics and Vibration, Volume 2012, Issue 1, 2012., 2012
We consider ultrasonic imaging for the visualization of flaws in a material. Ultrasonic imaging is a powerful nondestructive testing (NDT) tool which assesses material conditions via the detection, localization, and classification of flaws inside a structure. We utilize reflections of ultrasonic signals which occur when encountering different media and
Yimin D. Zhang +4 more
wiley +1 more source

Synthetic aperture focusing and time-of-flight diffraction ultrasonic imaging - past and present

, 2022
S.310-323The detection of defects in materials and components using ultrasonic nondestructive testing and evaluation techniques is of interest in many industrial areas.
Schmitz, Volker +4 more
core +1 more source

Austenitic Biomaterial Cracks Evaluation by Advanced Nondestructive Techniques

Advances in Electrical and Electronic Engineering, 2017
The article deals with Non-Destructive Evaluation (NDE) of austenitic stainless steels. Eddy current, ultrasonic testing and non-contact magnetic field mapping methods are used for this purpose.
Milan Smetana +3 more
doaj +1 more source

Neutron Time‐of‐Flight Texture Analysis

, 1991
Texture, Stress, and Microstructure, Volume 14, Issue 1, Page 59-64, 1991.
K. Feldmann, M. Betzl, W. KLeinsteuber, K. Walther +3 more
wiley +1 more source

Automated detection of weld defects in TOFD images for steel bridges using generative adversarial networks

Case Studies in Construction Materials
Time-of-flight diffraction (TOFD) has been widely adopted for weld defect detection in bridge steel quality assurance due to its harmlessness to the human body, real-time performance, and satisfactory detection accuracy.
Yanfeng Gong +4 more
doaj +1 more source

Simulation of the TOFD technique using the finite element method

, 2007
The ultrasonic Time-of-Flight Diffraction (TOFD) technique is a well-known technique for defect sizing. This technique has been applied to thick sections (>15 mm).
Rao, C Lakshmana +2 more
core +1 more source

Evaluation of Ultrasonic Time-of-Flight Diffraction Data for Selected Control Rod Drive Nozzles from Davis Besse Nuclear Power Plant [PDF]

, 2011
Pacific Northwest National Laboratory (PNNL) examined ultrasonic (UT) time-of-flight diffraction (TOFD) data from ten (10) nozzles in the Davis Besse Nuclear Power Plant reactor closure head.
Anderson, Michael T. +5 more
core +1 more source

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