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burst-type emissions

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003237
EISBN: 978-1-62708-199-3
... Abstract Acoustic-emission inspection detects and analyzes minute acoustic-emission signals generated by discontinuities in materials under applied stress. This article discusses the types of acoustic emissions (continuous-type emissions and burst-type emissions) and applications, including...
Image
Published: 01 August 2018
Fig. 7 Natural acoustic emission burst-type signal in steel pressure vessel recorded using a 150 kHz resonance sensor More
Image
Published: 01 August 2018
Fig. 12 Widely used features of the acoustic emission burst-type signal include amplitude, duration, counts, and signal strength. More
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006454
EISBN: 978-1-62708-190-0
... ( Fig. 2 ) cannot be overemphasized. Fig. 7 Natural acoustic emission burst-type signal in steel pressure vessel recorded using a 150 kHz resonance sensor Fig. 8 Same event as in Fig. 7 recorded using a broadband sensor Fig. 9 Power spectra of signals from (a) resonant...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005578
EISBN: 978-1-62708-174-0
.... acoustic emission austenitic stainless steels ferrite ferrous alloys in-process quality control microstructural evolution process monitoring rotary friction welding THERE ARE A VARIETY of friction welding processes. Usually, they are characterized by the type of relative motion that is applied...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006640
EISBN: 978-1-62708-213-6
... of OES, along with various types of emission sources commonly used for OES. Some of the processes involved in calibration and quantification of OES for direct solids analysis by the ratio method are then described. The article ends with a discussion on the applications of each type of emission sources...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009013
EISBN: 978-1-62708-185-6
... generally, some type of defect is observed. Examples include edge cracking during rolling operations, central bursting during extrusion, cavitation during superplastic forming of aluminum alloys, or even cracking of the tooling itself. In these instances, combining the use of damage criterion ( Ref 1 , 2...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001053
EISBN: 978-1-62708-161-0
..., borings, stampings, and even rejected parts. As indicated by the word prompt, this type of scrap can usually be recycled quickly and, in many cases, with minimal processing. Obsolete scrap refers to finished goods that are worn out, broken, or otherwise no longer useful. Automobiles, appliances (white...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... discusses the types of imperfections that can be traced to the original ingot product. These include chemical segregation; ingot pipe, porosity, and centerline shrinkage; high hydrogen content; nonmetallic inclusions; unmelted electrodes and shelf; and cracks, laminations, seams, pits, blisters, and scabs...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001749
EISBN: 978-1-62708-178-8
... having Z > 82, β- and α-particle emitters are usually available. These very heavy nuclides typically emit γ-rays; therefore, two types of radioactive emission can be measured. Alpha-particle counting yields relatively high measurement precision if suitable chemical separations are used to prepare...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... is the receiver, typically aligned opposite to the pulser. The coupling medium of the ultrasound to the composite is usually water. This may be performed by immersing the sample in a water tank or by using water-squirter systems. For TT examinations, the pulser often employs a tone burst (several cycles...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
... to other types of composites such as metal-matrix composites and ceramic-matrix composites. nondestructive testing composite materials ultrasonic testing air-coupled ultrasonic testing laser ultrasonic testing ultrasonic spectroscopy leaky lamb wave method acousto-ultrasonics radiography X...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.9781627081900
EISBN: 978-1-62708-190-0
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005539
EISBN: 978-1-62708-197-9
... of the body surface. This emissivity depends on the material type and the surface condition, and its value ranges from 0 to 1. For example, the emissivity of a black body (absorbs all energy incident on it) is 1, while the emissivity of aluminum and carbon steel is 0.1 and 0.4, respectively. If multiple...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004021
EISBN: 978-1-62708-185-6
... 16 . For furnace heating, radiation heat dominates the temperature distribution of the workpiece. Radiative heat energy emitted by a body depends on the emissivity of the body surface. This emissivity depends on the material type and the surface condition, and its value ranges from 0 to 1...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006960
EISBN: 978-1-62708-439-0
... emissions), must be managed and disposed of, again in conformity with the EH&S regulation applicable to their condition. Therefore, control of these materials is an essential part of the EH&S considerations. The forms of packaging (type, quantities, sealing, and location) and the manipulation...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001478
EISBN: 978-1-62708-173-3
... with a viscous resin. A standardization procedure for the system was outlined and methods of acoustic emission data presentation were selected to provide real-time information. A crack in the brazed joint produced a peak, or burst, emission in the acoustic emission record. As indicated in Fig. 10 , the record...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001733
EISBN: 978-1-62708-178-8
... element. Both types of radiation are encountered in x-ray spectrometry. Continuum Emission of x-rays with a smooth, continuous function of intensity relative to energy is called continuum, or bremsstrahlung, radiation. An x-ray continuum may be generated in several ways. However, the most useful...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
...; second, it allows relative sliding motion with minimum resistance. This type of design obviously requires some external means of holding the pieces together. In some cases, the metal is shrink-fitted over the interface material and the ceramic. In other cases, external bolts or clamps are used to trap...
Book Chapter

By S. Lampman
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006645
EISBN: 978-1-62708-213-6
... to special samples, but, similar to the SEM, this also requires putting the sample in a vacuum chamber. Electron bombardment of a target results in two types of x-ray emission from the target: a continuum of x-ray energies (bremsstrahlung radiation) as well as the characteristic radiation of the target...