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forge welding

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001453
EISBN: 978-1-62708-224-2
... been made from wrought-iron, forge welded in the usual manner, and that it was not electrically-welded steel as had been supposed. Failure was attributed to embrittlement in service of the surface material of the links. If it had been realized that the sling was made from wrought-iron then it would...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001422
EISBN: 978-1-62708-229-7
...-fatigue fissures which originated at a zone containing defects introduced at the time of manufacture. These may have had their origin in the ingot from which the plate was rolled or, alternatively, be indicative of a zone which suffered overheating and local burning at the time the forge weld was made...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047879
EISBN: 978-1-62708-234-1
... of ASTM A105, grade 2 steel, and the larger-diam section was covered with a type 316 stainless steel end cap. The cap was welded to each end using type ER316 stainless steel filler metal. The forged steel shaft was revealed to have fractured at approximately 90 deg to the shaft axis in the weld metal...
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
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001353
EISBN: 978-1-62708-215-0
...Abstract Abstract A reversible four-way carbon steel flap valve in a thermal power station failed after 7 years of service. The flap had been fabricated by welding two carbon steel plates to both sides of a carbon steel forging. The valve was used for reversing the flow direction of seawater...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0089766
EISBN: 978-1-62708-224-2
... of improved design were attributed to fatigue cracks initiating at the aluminum oxide inclusions in the flange fillet. Recommendations included retaining the improved design of the flange with the weld approximately 50 mm (2 in.) from the fillet, but changing the metal to a forging of AISI 4140 steel, oil...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047602
EISBN: 978-1-62708-235-8
...Abstract Abstract Parts of 21Cr-6Ni-9Mn stainless steel that had been forged at about 815 deg C (1500 deg F) were gas tungsten arc welded. During postweld inspection, cracks were found in the HAZs of the welds. Welding had been done using a copper fixture that contacted the steel in the area...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001039
EISBN: 978-1-62708-214-3
... spindle is made from a solid 120 mm (4.75 in.) diam forging. This forging is machined to a 115 mm (4.5 in.) diameter to fit tightly inside a 165 mm (6.5 in.) OD collar that is 210 mm (8.25 in.) long. A raised 3.175 mm (0.125 in.) land 13 mm (0.5 in.) long is left on the spindle for welding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091655
EISBN: 978-1-62708-229-7
...Abstract Abstract Cracking occurred in an ASME SB166 Inconel 600 safe-end forging on a nuclear reactor coolant water recirculation nozzle while it was in service. The safe-end was welded to a stainless-steel-clad carbon steel nozzle and a type 316 stainless steel transition metal pipe segment...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001308
EISBN: 978-1-62708-215-0
...Abstract Abstract Persistent cracking in a forged 1080 steel turntable rail in a wind tunnel test section was investigated. All cracks were oriented transverse to the axis of the rail, and some had propagated through the flange into the web. Through-flange cracks had been repair welded...
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
...Abstract Abstract A cracked 356 mm (14 in.) diam slip-on flange (Ni-Cr-Mo-V steel) was submitted for failure analysis. Reported results and observations indicated that the flange was not an integral forging or a casting, as specified. It had been fabricated by welding and machining a ring...
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
... during welding. The remaining possibility was over-heating or burning of the forging, which classically results in large grain size, intergranular fractures, and fine oxide particles dispersed throughout the grains. The induction-heating stress-improvement process was suspected to have induced tensile...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047817
EISBN: 978-1-62708-233-4
... was changed to a one-piece forging and circulation of atmosphere during heat treatment was permitted through a hole drilled in the flange end of the rod to avoid decarburization. Friction Welding Holes Roughness Stress concentration 8620 UNS G86200 Fatigue fracture Heat treating-related failures...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001429
EISBN: 978-1-62708-227-3
... the forging. Crankshafts Fillet welds Stress relieving Welded steel Joining-related failures Fatigue fracture The following case illustrates very effectively the danger of attempting to reclaim highly stressed parts by the application of fusion welding. It concerns two Diesel engine...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001437
EISBN: 978-1-62708-220-4
...Abstract Abstract A steam jacketed autoclave of orthodox design was fabricated from mild steel for a working pressure of 320 psi. The only unusual feature in its construction was a protective layer of weld metal, which was deposited on the internal surface of the upper half of the 1 in. thick...
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
... to produce. Examples of these applications include through-thickness property measurements in plates and forgings, weld heat-affected zones, and precious metals where small amounts of material are available. In addition, characterizing the mechanical behavior of anisotropic materials often requires...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... requirements (e.g., magnetic, electrical, electronic, or thermal properties) typically supersede the mechanical property requirements. Other design disciplines include industrial, automotive, welding, mining, aerospace, nuclear, and computer engineering. Each type of engineering discipline requires...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... as that of the failed part, fabrication practice (machining, welding, forging, or casting), heat treatment, types of loading to which the equipment is subjected, and operating environment, such as corrosive or high-temperature atmospheres. Many failures may be the result of a combination of several faults...
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
... inclusions, brittle second-phase particles, weld defects, or arc strikes. Occasionally, brittle fractures are encountered, particularly in low-temperature environments or as a result of impact or a rapidly applied overload. Brittle fracture may thus be attributable to inappropriate choice of material...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001325
EISBN: 978-1-62708-215-0
... directly to the C-D run by a weld, while Leg A was joined to the C-D run through a forged reduction socket (see Fig. 2 ). Fig. 2 Construction of the cross-tee, showing the 2-in. Schedule 80 pipe (A), joined to the 3-in. Schedule 80 pipe (C-D) by a reduction socket (E). The remaining arm...