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Intergranular fracture

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... Abstract This article briefly reviews the factors that influence the occurrence of intergranular (IG) fractures. Because the appearance of IG fractures is often very similar, the principal focus is placed on the various metallurgical or environmental factors that cause grain boundaries...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090881
EISBN: 978-1-62708-229-7
... power generation Steam generators Tubes Inconel 600 UNS N06600 Intergranular fracture Power plants use steam generators, which have hot reactor coolant water flowing through the generators. One power plant experienced a steam generator tube rupture in the early 1990s. Metallurgical evaluation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047579
EISBN: 978-1-62708-234-1
... separation under subsequent loading. The studs fractured under service loads as a result of intergranular crack propagation in the HAZ. Rapid heating and cooling during attachment welding produced a martensitic structure in the HAZ of the stud, which cracked circumferentially from the combination of thermal...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... Abstract This article briefly reviews the various metallurgical or environmental factors that cause a weakening of the grain boundaries and, in turn, influence the occurrence of intergranular (IG) fractures. It discusses the mechanisms of IG fractures, including the dimpled IG fracture, the IG...
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Published: 01 December 2019
Fig. 3 Detail of a fracture origin, showing intergranular fracture and decreasing grain size inward from the surface More
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Published: 01 January 2002
Fig. 11 Mud cracks on the surface of an intergranular fracture in 7079-T651 aluminum that failed under SCC conditions in a 3.5% chloride solution. TEM replica More
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Published: 01 January 2002
Fig. 2 SEM images of intergranular fracture with different grain morphologies. (a) Rock candy appearance from atmospheric stress-corrosion cracking of a high-strength aluminum alloy with equiaxed grains. 130×. (b) Intergranular fracture along the part line of an aluminum forging More
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Published: 01 June 2019
Fig. 9 SEM showing intergranular fracture surface of a coupling with large grains. See Fig. 6 for the corresponding microstructure. More
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Published: 01 June 2019
Fig. 2 SEM micrograph showing intergranular fracture along prior-austenite grain boundaries at fracture-initiation site in ultrahigh-strength steel dragline bucket tooth. 200× More
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Published: 01 June 2019
Fig. 2 SEM micrograph showing intergranular fracture along prior-austenite grain boundaries at fracture-initiation site in ultrahigh-strength steel dragline bucket tooth. 200x More
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Published: 01 June 2019
Fig. 8 Higher Magnification of Plate 3, Note Intergranular Fracture and “Mud Cracking” of Corrosion Products Scanning Electron Micrograph, 2000× More
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Published: 01 June 2019
Fig. 4 EPMA spectrum obtained from a contaminated intergranular fracture area on the bend of a failed Inconel 600 bellows. More
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Published: 01 June 2019
Fig. 12 SEM image of intergranular fracture surface from secondary crack. 50× More
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Published: 01 June 2019
Fig. 13 SEM image of intergranular fracture surface from secondary crack. 200× More
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Published: 01 June 2019
Fig. 3 Intergranular fracture mode within gray area of flaw. Crack growth direction is from bottom to top. More
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Published: 01 June 2019
Fig. 17 Intergranular Fracture surface of the Cracks Shown in Fig. 15 . More
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Published: 01 June 2019
Fig. 20 Intergranular fracture without significant decarburisation × 150 More
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Published: 01 June 2019
Fig. 4 SEM fractograph showing the intergranular fracture mode of the tubes. More
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Published: 15 January 2021
Fig. 1 Scanning electron microscopy images of (a) intergranular fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite More
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Published: 15 January 2021
Fig. 2 Scanning electron microscopy images of intergranular fracture with different grain morphologies. (a) Rock candy appearance from atmospheric stress-corrosion cracking of a high-strength aluminum alloy with equiaxed grains. Original magnification: 130×. (b) Intergranular fracture along More