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three-piece welds

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001203
EISBN: 978-1-62708-235-8
... of broken-out bearing boss from below. 1 3 × Fig. 1 shows one of the bosses seen from the underside. It had broken away on three sides along the welds. The cleaved fractures in the burned notches propagated partially above and partially below several incipient cracks which may be fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001431
EISBN: 978-1-62708-221-1
... were of poor quality. The corner angles appeared to have been cut slightly shorter than the required dimensions. This was compensated in one case by the use of a weld build-up and in the other three by make-up pieces attached by welds of insignificant dimensions. Cranes Weld defects Welded...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... with the diffuser tube. Failures with these stages, at the TIG weld, occurred in 1986 and 1987 after only three months of service. An investigation was initiated to determine how the life of the diffuser stages could be extended. Finite element analyses were employed to examine the stress states that were...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001332
EISBN: 978-1-62708-215-0
... only Mechanical Properties Hardness Hardness of the main flange was measured at three sites, with readings of 69, 70, and 72 HRB, for an average hardness of 70 HRB. Three readings of the insert measured 76, 78, and 80 HRB, for an average of 78 HRB. No further work was deemed necessary...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001148
EISBN: 978-1-62708-228-0
... sections were machined from the portion of the pipeline that did not fail in service. Two of these specimens were in the transverse direction with one containing the longitudinal weld. A 4″ (10.2cm) wide flattening ring was also cut from this same section of pipe. The measured yield strength for all three...
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
... and unnotched bend test), but in all three cases it became embrittled locally at regions where it had been plastically deformed by shearing or bending. With two of the failures it would appear that the subsequent heating imparted by welding or flame-cutting in the same locality contributed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
.... Dye-penetrant examinations and radiographic inspection revealed the presence of approximately 40 cracks at the inner surface in the three circumferential weld regions examined. Virtually all of the cracks were in the base metal HAZ of the forged elbow and wedge material on each side of the weld...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001307
EISBN: 978-1-62708-215-0
.... Metallography One of the three metallographic specimens from the fracture is shown after polishing and etching in nital in Fig. 4 . The weld bead on the outside surface of the hanger, A, had the effect of mending the fracture. That on the inside surface, B, missed the fracture surface, C, altogether. Thus...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001782
EISBN: 978-1-62708-241-9
... are hollow shells constructed from three or four separate forged pieces that are welded together [ 1 ]. Due to the different property requirements for these areas of the club heads, several different titanium alloys can be used in combination to fabricate a single club head. Still, one of the most commonly...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048795
EISBN: 978-1-62708-220-4
...Abstract Abstract A large pressure vessel designed for use in an ammonia plant failed during hydrostatic testing. It was fabricated from ten Mn-Cr-Ni-Mo-V steel plates which were rolled and welded to form ten cylindrical shell sections and three forgings of similar composition. The fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001152
EISBN: 978-1-62708-234-1
...-alloyed steel with 39 kg/sq mm tensile strength, which had been strengthened by welding plate strips on both sides had fractured in service; an axle tube out of 40 Mn 4 after DIN 17 200 from a paper fabrication machine, which had three short longitudinal slits distributed uniformly over its surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048782
EISBN: 978-1-62708-235-8
...Abstract Abstract A steam accumulator, constructed with 10.3 mm thick SA515-70 steel heads and an 8 mm thick SA455A steel shell, ruptured after about three years of service. The accumulator was used in plastic molding operations. An extensive lack of weld penetration in this the head-to-shell...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
... 485 70.4 32 A283, grade D 228 (min) 33 (min) 414–496 60–72 23 (min) Impact Toughness Because it was suspected that the failure had been caused by impact at approximately 4 °C (40 °F), three Charpy V-notch impact specimens were extracted from the base metal adjacent to the weld...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001401
EISBN: 978-1-62708-220-4
... normal to the weld. Three main growths of this type were present, extending up to 1 1 2 in. from the weld, and their paths did not appear to be influenced by the presence of the perforations. The cracking was more extensive on the inside surface of the shell than on the external, except...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001590
EISBN: 978-1-62708-228-0
... from Cr-containing carbide precipitation; and, finally, establishes a grain matrix more likely to form a coarser (less damaging) age hardening precipitate. For Alloy 601, such a temperature is believed to be 900 to 1000 °C (1650 to 1830 °F) for between one and three hours. After the phenomena...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001146
EISBN: 978-1-62708-229-7
... and a confirmation of the vent header's mechanical/chemical and impact properties. The test methods used in this analysis were: Visual/Photography Optical Microscopy/Metallography Chemical Analysis/Tensile/Hardness Testing Scanning Electron Microscopy (SEM)/ Impact Testing One of the three...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... of region at arrow in (c). 5.5×. (e) Charpy V-notch impact-strength values of specimens from weld area, both as-fractured and after retempering at 650 °C (1200 °F) for 6 h. Source: Ref 5 The failure did extensive damage to one end forging and three adjacent shell sections. Four large pieces were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001442
EISBN: 978-1-62708-221-1
... the mode of failure shown in Figure 3 , three examples being superimposed on one another. Fig. 1 Failure of double fillet welded joint between vane and back plate disclosing lamellar tearing. Fig. 2 A further region showing features similar to fig. 1 . Fig. 3 Three superimposed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001065
EISBN: 978-1-62708-214-3
... specimens were machined, six each from the piping material, the elbow material, and the weld material. All of the subsized specimens were machined in accordance with ASIM E 23, “Standard Methods for Notched Bar Impact Testing of Metallic Materials.” Three of each group of six specimens were tested at room...
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
... of the square, 45° to the normal stresses. The third-dimension radial stresses are ignored in this description. The effects of the shear and normal stresses on ductile and brittle materials under the three types of loads illustrated in Fig. 1 and under bending load are discussed below. Tension Under...