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ultrasound testing

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Published: 30 June 2023
Fig. 18 Hybrid laser ultrasound testing (LUT) and thermography system for inspection of cladded wheel. (a) Integrated nondestructive testing inspection setup using laser ultrasound and thermographic testing of cladding cell. FLIR, forward-looking infrared. (b) Thermography inspection during More
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006953
EISBN: 978-1-62708-439-0
... test. Resonant Ultrasound Spectroscopy Method from the Laboratoire d’Imagerie Biomédicale The Laboratoire d’Imagerie Biomédicale (LIB) ( Ref 25 ), from Sorbonne University/Centre National de la Recherche Scientifique/Institut National de la Santé et de la Recherche Médicale in Paris, has...
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Published: 01 August 2018
Fig. 10 Expected ultrasound test signals (expressed in effective flat bottom hole, or EFBH, units) from a statistically weighted range of flaw and component parameters as a function of the size (characterized by area) for (1) a perfect reflector, (2) a “strong” scattering inclusion (large More
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Published: 31 October 2011
Fig. 16 Nondestructive testing using magnitude of ultrasound interface echo to measure weld contact area as an indication of weld quality More
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Published: 30 June 2023
Fig. 17 Example of in-process inspection (direct inspection) of the welding process by laser ultrasound testing (LUT). (a) Laser ultrasound setup for direct inspection of laser welding at a processing speed. (b) Visual comparison between x-ray computed tomography (postbuild) and laser More
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Published: 30 June 2023
Fig. 11 Detection of notches seeded on the surface of a cladded sample by laser drilling. LUT, laser ultrasound testing. Courtesy of the OpenHybrid project More
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Published: 30 June 2023
Fig. 5 (a) Resonant ultrasound spectroscopy setup used by The Modal Shop to test the stainless steel star artifacts. (b) Spectra of a reference star (in blue) and a defective star (in red) as well as defined criteria (vertical green) More
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Published: 30 June 2023
Fig. 6 (a) Resonant ultrasound spectroscopy setup used by Vibrant to test the stainless steel star artifacts. (b) Portion of spectra of four reference stars (in green) and four defective stars (in red) More
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007023
EISBN: 978-1-62708-439-0
... and Computed Tomography in Additive Manufacturing ,” and “ Resonant Ultrasound Spectroscopy Testing Methods in Additive Manufacturing .” This article covers defect formation and classification, followed by a brief description of the most common NDT methods used for postbuild inspection. Descriptions...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006477
EISBN: 978-1-62708-190-0
... of the methods performed on various types of flaws resulting from solid-state welding processes. eddy current nondestructive evaluation solid-state welding ultrasound testing X-ray radiography A NUMBER OF NONDESTRUCTIVE EVALUATION (NDE) methods, such as visual, liquid penetrant, magnetic particle...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006469
EISBN: 978-1-62708-190-0
... applications are considered in detail in the article “Phased Array Ultrasound” in this Volume. The pulse-echo method involves the detection of echoes produced when an ultrasonic pulse is reflected from a discontinuity or an interface in a test piece. This method is used in flaw detection, flaw location...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006466
EISBN: 978-1-62708-190-0
... Nondestructive testing and materials characterization Materials characterization and research Frequency range 10–500 MHz 10–100 MHz 100 MHz–2 GHz Resolution Resolution limited to the wavelength of ultrasound within the sample material Resolution limited to the wavelength of ultrasound within...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006471
EISBN: 978-1-62708-190-0
... with horns for high power and for a range of specialized nondestructive testing (NDT) applications. Magnetostriction is used for lower frequencies; a common application now is guided wave generation ( Ref 6 ). In looking more widely at options for ultrasound generation that generally are considered...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
... analysis, acoustic emission testing, temperature monitoring, motor current signature analysis, and ultrasound emission. The article describes the evolution of condition-based maintenance in CM. It also describes the basics of integrated vehicle health management, a capability that enables a number...
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Published: 01 August 2018
Fig. 23 Effect of direct-beam path length on frequency modulation range needed to avoid standing waves in the continuous-beam transmission testing of a material in which ultrasound velocity is 6 km/s (4 miles/s) More
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Published: 01 August 2018
Fig. 14 50 MHz C-mode scanning acoustic microscopy reflection-mode micrograph of a carbon-fiber-reinforced plastic test sample. The ultrasound was focused near the top surface of the sample. Field of view: 19 × 14 mm More
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Published: 01 August 2018
Fig. 21 Scanning laser acoustic microscopy image at 30 MHz of an alumina test disk similar in size to that shown in Fig. 18 . This sample was quite transparent to the ultrasound, as evidenced by the bright, relatively uniform appearance of the acoustic image. Field of view: 14 × 10.5 mm More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005616
EISBN: 978-1-62708-174-0
... with the radiography method over other NDE methods is the requirement for accessibility to both surfaces of the material to be tested. Ultrasound The ultrasonic method uses high-frequency sound waves to locate and measure flaws in welds. It can be used to inspect various materials such as metals, plastics...
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Published: 01 August 2018
Fig. 18 Low-frequency 10 MHz scanning laser acoustic microscopy image of a 25 mm (1 in.) diameter alumina test disk. The disk is very attenuating to ultrasound because of internal defects that cover approximately 75% of the area (dark zones). Field of view: 35 × 26 mm More
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006460
EISBN: 978-1-62708-190-0
... ultrasound is at the basis of material testing, similarly to conventional ultrasonics, laser-ultrasonics entails the same applications, which include thickness measurement, flaw detection, and materials characterization. Thickness measurement is based on the measurement of the time interval between...