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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
... of compressive residual stresses, stress-corrosion tests were conducted on shot-cleaned bolts. Vendor A bolts, received with a built-in residual compressive stress of 241 MPa (35 ksi), were shot-cleaned, which resulted in a stress of approximately 510 MPa (74 ksi). Bolts treated in this manner were highly...
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
...-strengthening nickel-silicon bronze. To identify the root cause of failure, the rail operator led 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...
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
... ) 10.1361/154770205X76349 5. Ray A. , Prasad M.S. , Barhai P.K. , Mukherjee S.K. : Metallurgical investigation of prematurely failed hot-strip mill work-rolls: some microstructural observations . J. Fail. Anal. Preven . 4 ( 3 ), 58 – 66 ( 2004 ) 10.1007/s11668-996-0016-8...
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
...Results of microhardness testing Table 1 Results of microhardness testing Distance from HAZ Hardness, HRA Microstructure (a) mm in. 1 0.04 61 FP 3 0.12 62 FP 5 0.20 60 FP 7 0.28 60 FP 9 0.36 59 DP 11 0.44 62 DP 13 0.52 62 DP 15 0.60...
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 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 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 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
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
...Results of tensile testing Table 1 Results of tensile testing Specimen Yield strength Ultimate tensile strength Elongation, MPa ksi MPa ksi % Wed (fractured) 685 100 916 133 15.1 Wed (unfractured) 624 90 933 135 14.8 Flange 397 58 794 115 19.6 IS-226...
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.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
... sulfur. The cracks were on the compression side of the buckle, which is unusual since cracks typically initiate from the tension side. The dip tube wall temperatures could have been above 550 °C due to hot syngas on the inside and the lack of cooling on the outside. This could have caused...
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
... the positions at which the values are measured 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...
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.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
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... 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...