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ultrasonic fatigue test

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Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003236
EISBN: 978-1-62708-199-3
... are also addressed. The article concludes with a review of the advantages and disadvantages of ultrasonic inspection compared with other methods applications of the technique. couplants flaw detection nondestructive testing piezoelectric transducer elements pulse-echo method transmission...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006473
EISBN: 978-1-62708-190-0
... provides information on the dimension-measurement applications of ultrasonic inspection methods. ultrasonic imaging inspection area-amplitude blocks distance-amplitude blocks calibration defects WHEN ULTRASONIC NONDESTRUCTIVE TESTING (NDT) was first applied, it was a workmanship standard and...
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
... ultrasonic waves; some examples are shown in Fig. 1 ( Ref 1 , 2 ). Conventional technologies most commonly have used single-element piezoelectric-based transducers that couple energy into a part using a couplant. This couplant can be a grease or gel in contact testing, or a large volume of fluid, commonly...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006470
EISBN: 978-1-62708-190-0
... Ultrasound” in this Volume. Fig. 1 Schematic for a two-transducer nondestructive testing (NDT) system The principal advantages of ultrasonic inspection, as compared to other methods used for nondestructive inspection of parts, are: Superior penetrating power, which allows the detection of...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001226
EISBN: 978-1-62708-170-2
... break test on the part to see if most oil has been removed. Others are as elaborate as surface quality monitoring that uses optically stimulated electron emission technology to measure thin films of contaminants down to the Angstrom level. If a current system exists, such as a vapor degreaser or soak...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
...-static, finite-life, and infinite-life regimes ( Fig. 3 ). Fig. 3 S - N curve for cruciform metal-active-gas-welded joints (structural steel S355, ASTM A572 grade 5). LCF, low-cycle fatigue; HCF, high-cycle fatigue; P F , probability of failure Failure in S - N testing is typically...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006446
EISBN: 978-1-62708-190-0
... techniques is based on quasi-static or dynamic modulation of an ultrasonic probe wave. The wave is usually a low-amplitude ultrasonic wave similar to those used in linear ultrasonic NDE, but the modulating deformation is sufficiently strong to produce a nonlinear response from the material being tested. The...
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
... system. Because 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...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006457
EISBN: 978-1-62708-190-0
... radiation at an angle of approximately 30° with respect to the centerline of the core or closure web. If the adhesive is not x-ray opaque, then ultrasonic, eddy sonic, and tap tests can be used to locate the area having unbonded cells. Ultrasonic C-scan can be used to record skin-to-adhesive and adhesive-to...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005657
EISBN: 978-1-62708-198-6
... subject device must be documented in its as-received condition, prior to any cleaning or analysis. It is imperative that any destructive testing or analysis not be conducted prior to sufficient documentation. Often, failed devices are covered in sufficient biological material that cleaning is required...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006269
EISBN: 978-1-62708-169-6
... substitute for nitrogen profiles. Therefore, the kinetic rate cannot be measured in those situations by microhardness testing ( Ref 2 ). The nitriding temperature is sufficiently high that there is also a possibility of diffusion of the alloying elements during the process. In fact, diffusion of the solute...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
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
... ) demonstrates that this region contains silicon carbide particles with little or no matrix aluminum. The size of this matrix-starved region is on the order of 30 μm. This demonstrates that the ultrasonic test method is capable of detecting very small regions of poor blending. Table 7 Defects in metal...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006461
EISBN: 978-1-62708-190-0
... inspection of highly attenuative materials. Noncontact scanning capability (air-coupled ultrasonic testing) Transducers are expensive; poor signal-to-noise ratio in certain applications 16 – 18 Electromagnetic acoustic transducer Line/cylindrical/other, depending on design Noncontact scanning...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006443
EISBN: 978-1-62708-190-0
... to unrealistic NDE performance expectations. All modern engineering is based on comprehensive applications of principles that can be implemented by qualitative measurements and predictive modeling and on comprehensive procedural applications of principles based on prior art and systems test data...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... testing techniques, but this can be complicated by complex geometries and surface condition. Ultrasonic inspection for surface and volumetric defects can be used to examine defects and microstructure variation. Immersion techniques will likely, for some applications, be limited by geometrically complex...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... this article is on the various types of static load testing, hardness testing, and impact testing. Other specialized testing, such as wear testing, dynamic (high-strain-rate) testing, elevated-temperature creep/stress rupture, residual stress, fracture mechanics, and fatigue testing, are potentially...
Book Chapter

By Peter J. Blau
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... · M p − 1 , various quantities based on erosion-time curves (see ASTM test method G 32 for description) Cavitation M M · t −1 Rolling Rolling contact fatigue T ind , N f L 10 Rolling with slip t ind , N f … D = length or dimenional change, L 10...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
...; however, a general-purpose machine tool is not regularly available. Each application is engineered to meet the requirements as found by sample test cuts made to determine the exact values for the key operating parameters. Equipment generating pressures up to 415 MPa (60 ksi) is commercially available with...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001221
EISBN: 978-1-62708-170-2
... industrial use. The final evaluation of the effectiveness of a cleaning process should come from a performance test. Eight well-known methods of determining the degree of cleanness of the work surface are discussed below. In the use of any metal cleaning process, there...