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hot-compression testing

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001377
EISBN: 978-1-62708-215-0
... As received 76 11 A As received 240 35 A Stress-received at 538 °C (1000 °F) for 1 h 19 2.7 A Shot-cleaned 510 74 (a) X-ray diffraction. Precision, ±55 MPa (8 ksi) In further investigations of the effect of compressive residual stresses, stress-corrosion tests were conducted...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001125
EISBN: 978-1-62708-214-3
... (6.1 in.) long, with 66 mm (2.6 in.) on each side for compression assembly. Such connectors have a long record of trouble-free performance. The steel cable was 0.67% C hot-drawn plain carbon steel, also galvanized for corrosion protection. Fig. 1 Schematic of the failed connector. Specimen...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001845
EISBN: 978-1-62708-241-9
... an investigation that included fractographic and microstructural analysis, hardness testing, inductively coupled plasma spectroscopy, and finite-element analysis. The fracture was shown to be brittle in nature and covered with oxide flakes, but no other flaws relevant to the failure were observed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001849
EISBN: 978-1-62708-241-9
... in severe work roll damage as well as machine downtime and increased maintenance costs. work rolls fracture surface-initiated spalling cast steel beach marks shear ledges (chevron rays) ratchet marks heat checks SEM fractography strain rate maximum shear stress H13 (chromium hot-work tool...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001545
EISBN: 978-1-62708-236-5
... cracking studies on type 304. Caustic, not chloride, stress corrosion was the culprit. The failed test loop contained carbon steel, stainless steel, and Inconel alloy 600 components — all susceptible to caustic stress corrosion. The loop was designed to carry under pressure a hot organic fluid...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... there. These compressive stresses would, in turn, induce frictional stresses opposing the sliding deformation of the crack tips. Crack Propagation Testing Fatigue crack propagation in ceramics has been studied in two modes: long-crack and short-crack studies. The long-crack studies (typically with crack lengths...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... cost of a fastener failure. Adequate testing is the most practical method of guarding against failure of a new fastener system for a critical application. The designer must not extrapolate existing data to a different size of the same fastener, because larger-diameter fasteners have significantly lower...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... More than half of all metallic springs that fail in testing or service do so by a fatigue mechanism. Many times, the fatigue crack is initiated by preexisting defects or cracks, corrosion, wear, or mechanical damage. However, in the majority of cases, there is no significant identifiable cause...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... of specification and qualification controls. The extent and complexity of the system needed is usually dictated by the probable cost of a fastener failure. Adequate testing is the most practical method of guarding against failure of a new fastener system for a critical application. The designer must...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... strength, ∼412 MPa (60 ksi); elongation, ∼23%. Specimen Selection Various samples were taken from both the broken and unbroken sections of the beam for chemical analysis, metallography, macroetching, sulfur printing, impact testing, and tensile testing. Visual Examination of General Physical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048791
EISBN: 978-1-62708-234-1
... of a sectioned and oxalic acid etched sample. The grain size was found to exceed the ASTM standard. No indications of sensitization were observed during testing with practice A of ASTM A 262. Definitive evidence of contaminants to support SCC as the failure mechanism was not disclosed during analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... of yielding, the splice plates were coated with brittle lacquer in the region of the holes prior to testing. At a load of 35 tons compressive yielding took place in front of the pin on one plate due to “bedding in” and at 56·5 tons on the other, indicating that some non-axial loading must have been...
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
... operations are also classified as either primary metalworking (where mill forms such as bar, plate, tube, sheet, and wire are worked from ingot or other cast forms) or secondary metalworking (where mill products are further formed into finished products by hot forging, cold forging, drawing, extrusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
...) tensile strength and a 241-MPa (35-ksi) yield strength. The steel mill tests showed a Charpy V-notch energy absorption of 30 J (22 ft · lb) at 20 °C (68 °F). The plates had been hot formed into segments during construction of the reactor. The inside of the vessel was refractory lined to keep its...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
... Abstract A pressure vessel failed causing an external fire on a nine-story coke gasifier in a refinery power plant. An investigation revealed that the failure began as cracking in the gasifier internals, which led to bulging and stress rupture of the vessel shell, and the escape of hot syngas...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... Abstract A deformed steel tube was received for failure analysis after buckling during a heat-treat operation. The tube was subjected to various metallurgical tests as well as nondestructive testing to confirm the presence of residual stresses. The microstructure of the tube was found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... a highly deformed microstructure. Significant increases in yield strength, ultimate tensile strength, and hardness, and a corresponding reduction in ductility, accompany the flow forming process. Conventionally, tubes are produced by hot extrusion followed by drawing or pilgering. However...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... and temperatures that vary from extremely low, as in arctic or cryogenic environments, to extremely high, as in gas turbines. In addition, shafts may be subjected to a variety of loads—in general, tension, torsion, compression, bending, or combinations of these. Shafts are also sometimes subjected to vibratory...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
...-transport system, indicating leakage from the pressure tube. The reactor was shut-down but hot (about 250°C) at the time of the leakage and, following the station's operating procedures, the reactor was immediately cooled and depressurized. This procedure demonstrated leak-before-break as a defence against...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001724
EISBN: 978-1-62708-234-1
... of the austenitic steel was ±47,000 psi. This is rather low, being about 35% of the ultimate tensile strength, whereas it should be nearer 46% in martensitic steels. The stress conditions in this test (from 47,000 tension to 47,000 compression) were so different from service stressing (from zero to 62,500 psi...