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transgranular fracture

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Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000605
EISBN: 978-1-62708-181-8
... fracture, brittle fracture, tensile-test fracture, transgranular fracture, cleavage fracture, delayed fracture, corrosion fatigue, inclusion morphology, fatigue crack propagation, and in-service fatigue fracture of various automotive components. These components include tie rod adjusting sleeves...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... of a component of interest in a failure investigation. Details on the mechanisms of deformation, brittle transgranular fracture, intergranular fracture, fatigue fracture, and environmentally affected fracture are also provided. brittle transgranular fracture creep fracture deformation ductile fracture...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000619
EISBN: 978-1-62708-181-8
..., transgranular fracture, microvoid coalescence, corrosion fatigue, fatigue striations, tensile-overload fracture, stress-corrosion cracking, and pitting corrosion of these alloys. copper alloys corrosion fatigue fatigue fracture fatigue striations fractograph stress-corrosion cracking tensile...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000626
EISBN: 978-1-62708-181-8
... the brittle fracture, transgranular fracture, intergranular fracture, and crack propagation of the tungsten carbide. brittle fracture cemented carbides four-point bending test fractograph intergranular fracture tungsten carbide Fig. 1273 Eta phase on the fracture surface of a 94WC-6Co alloy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003542
EISBN: 978-1-62708-180-1
... with vertical illumination, because origin cracks are often fairly flat and highly reflective, especially when transgranular fracture is present (see the section “Transgranular Fracture” for a further discussion). Fig. 5 Silicon nitride rod broken in uniaxial tension. Fracture origin is at the top...
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
...). Weakening or embrittlement can occur by preferential phase precipitation or absorption of environmental species in the grain boundaries. In addition, the grain-boundary regions may also be weakened by high temperature, whereby the predominant fracture path becomes intergranular (although transgranular...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005342
EISBN: 978-1-62708-187-0
... Abstract This article discusses the visual and microscopic characteristics of fractures of cast alloys. The fractures include ductile rupture, transgranular brittle fracture, intergranular fracture, fatigue, and environmentally induced fracture. The article describes the factors that affect...
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
.... The underlying mechanisms of IG fracture are much more varied than transgranular fractures. The mechanisms of transgranular fracture are fatigue, brittle cracking by cleavage, or ductile fracture by microvoid coalescence. In contrast, IG fracture is not a unique fracture process; it is just a preferential crack...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000621
EISBN: 978-1-62708-181-8
..., tension-overload fracture surface, ductile fracture, cone-shaped fracture surface, intergranular crack propagation, transgranular crack propagation, stress-corrosion cracking, hydrogen damage, and grain-boundary separation of these alloys. Fractographs are also provided for a forged aircraft main-landing...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... Leading to Fracture,” discusses material flaws where fracture can initiate. Fracture in engineering alloys can occur by a transgranular (through the grains) or an intergranular (along the grain boundaries) fracture path. However, regardless of the fracture path, there are essentially only four...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... an inflection when a change in fracture mechanism occurs. This includes significant formation of sigma and a change in fracture from transgranular to intergranular, plus many others. Measurements of fracture strain also show a minimum when the mechanism changes. Fig. 4 Typical creep deformation...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000616
EISBN: 978-1-62708-181-8
... cycles at failure. Fractograph shows region of transgranular fracture initiation with characteristic “thumbprint” and river patterns pinpointing origin at surface (bottom). Failure was salt corrosion assisted. SEM, 29×. Fig. 833 : Fatigue fracture surface of salt-coated sample. Test conditions: 483 MPa...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... to grain boundary River pattern or fan pattern Cleavage fracture; crack runs “down” river; fan rays point to initiation site within a grain (see Fig. 10 ) Tongues Twinning deformation during rapid crack propagation (see Fig. 28 ) Flutes on transgranular fracture surface Indicates...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005982
EISBN: 978-1-62708-168-9
... initiation. On the other hand, the influence of microcracks in martensite plates on transgranular crack propagation would be expected. A study of grain size effects on microcracking in an Fe-1.22% C alloy provides a link between microcracking and grain-boundary fracture ( Ref 45 ). In that study...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
... described in Fig. 17 . Source: Ref 57 Fig. 19 Bending fatigue crack initiation in gas-carburized and reheated 4320 steel. The dashed line corresponds to maximum depth of surface oxidation, and all fracture below dashed line is transgranular. Source: Ref 49 Fig. 1 Typical near...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001835
EISBN: 978-1-62708-181-8
... fractographs: ductile fracture (left) and transgranular fracture (right). Fig. 6 (a) Chevrons (arrows) emanating from the fracture origin in a bolt that failed under conditions of bending overload. (b) SEM fractographs of the origin and fracture surface shown in (a) Fig. 9 Formation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
..., intergranular fracture, buckling, transgranular beach marks, and pitting can be thought of as damage modes. Damage mode describes what damage is present. Damage mechanism: The specific series of events that describe both how the damage was incurred and the resulting consequences. Examples of damage...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... Fig. 562 A V-notch Charpy impact fracture in a specimen of 0.42C-2.1Mo-5.2Co alloy steel that was not as tough as had been expected. The fracture has been largely intergranular, although three facets appear to be transgranular cleavage facets. Note the secondary grain-boundary crack. Area...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... embrittlement fracture mechanics fracture modes intergranular fracture load-bearing capacity microstructure mixed-mode cracking overload failures stress analysis thermally induced embrittlement transgranular cleavage OVERLOAD FAILURES, from the perspective of materials failure analysts, refer...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003521
EISBN: 978-1-62708-180-1
... with an atlas of fracture features taken from earlier mechanical test specimens eliminated high-cycle fatigue (HCF) as the failure mechanism, because HCF cracking exhibits transgranular fracture features. The fracture features appeared to be consistent with both creep and low-cycle fatigue (LCF) failure...