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pressure impulse testing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001520
EISBN: 978-1-62708-235-8
... of cracking in the nominally unstressed, “as-fabricated” condition. In another, cracks were detected after the cylinders were subjected to a pressure impulse test. Part Data Both part types are made of 15-5 PH (UNS S15500) precipitation hardening stainless steel, heat treated to 1100–1235 MPa (159–179...
Image
Published: 01 June 2019
Fig. 2 Exposed crack surfaces of a chromium-plated 15-5 PH cylinder that failed during pressure impulse testing. 9× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001634
EISBN: 978-1-62708-221-1
... Abstract The boom lift equalizer hose on an excavator failed and the resultant release of high-pressure hydraulic fluid damaged the operator cabin. The hose was a heavy duty, high-impulse, multiple-spiral wire-reinforced, rubber covered hydraulic hose equivalent to 100R13 specifications as set...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006804
EISBN: 978-1-62708-329-4
.... Note that this shows that undamaged items can be quite useful as indicators. Best estimate: In this situation, the deformation is known, and the pressure-impulse relationship for the component damage may be estimated. Note that confidence of these estimates can vary due to uncertainties about...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091726
EISBN: 978-1-62708-217-4
... expulsion bladder. Investigation (visual inspection, pressure testing of 10 similar vessels, and chemical testing of the N2O4) supported the conclusion that the failure was due to stress corrosion from the N2O4, and specifically from a specification change in the military specification MIL-P-26539...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001635
EISBN: 978-1-62708-221-1
... hydraulic hoses), the wire reinforcing strands were a medium-carbon steel in the cold drawn condition. Radiographic nondestructive testing (NDT) was recommended to determine when a hydraulic hose should be replaced. Hydraulic hoses Wire reinforcement Carbon steel Ductile fracture Crevice corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001518
EISBN: 978-1-62708-228-0
... the majority of the braid wires were broken there was not enough intrinsic strength in the rubber inner hose to resist the normal operating pressures. Drilling rigs Hydraulic hoses Wire reinforcement Medium-carbon steel Crevice corrosion Background A fireball engulfed half of a drill rig...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001484
EISBN: 978-1-62708-229-7
..., and gave rise to radial and circumferential cracking of four of the LP wheels. The turbine in question was a 2,000 kW impulse type machine with a compound velocity wheel, followed by a pass-out connection and seven LP wheels of approximately 3 ft. 6 in. diameter. It was driven by steam at a pressure...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
... of eroded Stellite 6B. The characteristic columnar topography of liquid-droplet erosion is probably a consequence of impulse pressures focused by pits that were formed earlier in the process ( Ref 2 ). Such amplification effects are much less evident in cavitation erosion. Fig. 8 Early stage...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... Approach . John Wiley & Sons ( 2001 ). 10.1115/1.1383679 11. Web site: http://www.efunda.com/materials . 12. Basquin O.H. : The exponential law of endurance tests . Am. Soc. Test Mater. Proc. 625 – 630 ( 1910 ). 13. Hertzberg R.W. : Deformation and fracture...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... as temperature. For most structural materials, measured values of strength are higher under impulse loading, and values of ductility are lower, than the values measured under static loading. Tensile and yield strengths as much as 20% higher than the slow-tension-test values have been measured under very high...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... Impact In bodies subjected to repetitive impulse loading, characteristic subsurface zones have been observed for a large variety of materials under various test conditions (with both normal and compound impact) ( Ref 4 ). In general, three subsurface regions can be seen, as shown in Fig. 2...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... as temperature. For most structural materials, measured values of strength are higher under impulse loading, and values of ductility are lower, than the values measured under static loading. Tensile and yield strengths as much as 20% higher than the slow-tension-test values have been measured under very high...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... to the articles “ Hydrogen Damage and Embrittlement ” and “ Liquid-Metal- and Solid-Metal-Induced Embrittlement ” in this Volume and to Corrosion: Fundamentals, Testing, and Protection , Volume 13A of the ASM Handbook , 2003. Stress-corrosion cracking develops when a susceptible metal or alloy is exposed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... analysis, metallographic analysis, and simulated-service tests. It provides case studies for the analysis of SCC service failures and their occurrence in steels, stainless steels, and commercial alloys of aluminum, copper, magnesium, and titanium. aluminum alloys austenitic stainless steel carbon...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... In bodies subjected to repetitive impulse loading, characteristic subsurface zones have been observed for a large variety of materials under various test conditions (with both normal and compound impact) ( Ref 7 ). In general, three subsurface regions can be seen, as shown schematically in Fig. 2...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
...-limiting factors, such as creep or oxidation. The turbine may also be sensitive to the environment in which it operates and the composition of key inputs such as process water and fuel. A number of performance parameters, such as pressures, temperatures, speed, vibration, and power output...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006912
EISBN: 978-1-62708-395-9
... Electromagnetic spectrum. Courtesy of Nasky/Shutterstock. Royalty-free stock vector ID: 1255179580 Fig. 6 Computer simulation of a weighted glass-reinforced polycarbonate chassis being dropped onto a concrete floor Fig. 7 Drop test evaluating an acrylonitrile-butadiene-styrene 3D-printed...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
... test. The pulser section of the ultrasonic system applies a high-voltage pulse to the transducer, typically in the 100 to 300 V range. The pulse may either be a very short duration impulse using a “spike” pulser or a longer duration square wave pulse. The pulse excites the piezoelectric element, which...