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transgranular cleavage

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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
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000617
EISBN: 978-1-62708-181-8
... Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of nickel alloys and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the fatigue crack, transgranular cleavage, intergranular...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000625
EISBN: 978-1-62708-181-8
... the ductile fracture, interlaminar failure, transgranular cleavage and fracture, tension-overload fracture, longitudinal and transverse cracking, fiber splitting, stress rupture, and low-cycle fatigue of these composites. ductile to brittle transition fractograph metal-matrix composites tensile...
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: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000624
EISBN: 978-1-62708-181-8
... fracture, and high-cycle fatigue failure. aircraft components fatigue fracture fatigue striations ferrous metals fractograph impact fracture intergranular fracture nonferrous metals tensile fracture transgranular cleavage Fig. 1203 Surface of a slow-bending fracture that was produced...
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
... of the Witwatersrand, South Africa) Brittle fractures of 97WC-3Co alloys tested in four-point bending. Fig. 1274 : Transgranular (cleavage) fracture of a large, triangular WC grain. Note river patterns covering most of the grain surface. TEM Formvar replica, 11,200×. Fig. 1275 : Partly intergranular (smooth...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000607
EISBN: 978-1-62708-181-8
... region in rail steel (0.69 to 0.82% C) compact tension specimen similar to that in Fig. 311 . Fig. 317 : Typical transgranular cleavage. At right-center is a cleavage region that follows steps along pearlite lamellae. TEM replica, 5000×. Fig. 318 : Comparison of transgranular cleavage (left...
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
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
... cracking, which appears to follow some grain boundaries. The large, smooth facets resemble transgranular cleavage more than they resemble grain-boundary rupture. SEM, 4000× Fig. 797 High-magnification view of a region of the fracture in Fig. 794 not shown in Fig. 795 , displaying grain...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... plasticity may by present. Relatively brittle metals such as hardened steel and gray cast iron do not always form microscopically identifiable striations and macroscopic beach marks in cyclic failures. Transgranular cleavage is cracking through the discrete grains. Intracrystalline is an equally...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000623
EISBN: 978-1-62708-181-8
... by hydrogen was slight (about 12%). Fracture was by a mixture of shear rupture and transgranular cleavage. See also Fig. 1145 . SEM, 1100× Fig. 1145 Same fracture surface as in Fig. 1143 and 1144 , but shown at even greater magnification. Many small secondary cracks are present among moderate...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
... band emergence Cleavage or intergranular fracture Origin area may contain an imperfection or stress concentrator Progressive zone: worn appearance, flat, may show striations at magnifications above 500× Overload zone: may be either ductile or brittle Path of penetration may be irregular...
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
... ). Grain facets may also be masked, such as by oxides, as is common of IG creep fracture surfaces. 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...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006323
EISBN: 978-1-62708-179-5
... of ductile metals that fail as the result of nucleation, growth, and coalescence of microscopic voids that initiate at inclusions and second-phase particles. Cleavage fracture, as well as quasi-cleavage, involves separation along specific crystallographic planes of a grain, resulting in a transgranular crack...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... by transgranular cleavage or by intergranular separation. This is an oversimplification (most fractures display a mixture of features), but it is the basic premise. Metallographic examination of sections normal to the fracture surface will disclose the nature of the microstructure and whether the heat...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... by fractography. In general, a ductile alloy will fracture by microvoid coalescence and a brittle alloy will fracture by transgranular cleavage or by intergranular separation. This is an oversimplification (most fractures display a mixture of features), but it is the basic premise. Metallographic examination...
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: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... can be transgranular/cleavage or intergranular, depending on the material and conditions ( Fig. 6 ). Fig. 6 (a) Brittle fracture of cast aluminum tensile bar. (b) Brittle fracture of stainless steel. (c) Intergranular fracture of a superalloy. (d) Scanning electron microscope image...
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: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001835
EISBN: 978-1-62708-181-8
..., whereas brittle fractures can occur by either transgranular (cleavage, quasicleavage, or fatigue) or intergranular cracking. Intergranular fractures are specific to certain conditions that induce embrittlement. These include embrittlement by thermal treatment or elevated-temperature service...