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transgranular cracks

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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
..., University of Notre Dame, and D.J. Duquette, Rensselaer Polytechnic Institute) Fig. 1088 Transgranular corrosion-fatigue crack propagation in a solution-treated and peak-aged Al-5.6Zn-1.9Mg sample tested in humid nitrogen gas. Compare with Fig. 1091 and 1092 . SEM, 5000× (R.E. Ricker, University...
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: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... resolution of ductile intergranular fatigue striations Fig. 9 Corrosion products on the grain facets from stress-corrosion cracking (SCC) of a U-700 turbine blade, presumably from combustion-gas attack that induced SCC, with intergranular and transgranular modes shown Abstract Abstract...
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
... may introduce IG, transgranular, or quasicleavage cracking, and, although the macroscopic features appear to be brittle, on a microscopic scale there is a high degree of local plasticity, suggesting that hydrogen enhances flow at the crack tip. For many years, environmental cracking of aluminum...
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
... In a metallographic section, these two types of crack-propagation modes can be identified easily after etching. Intergranular cracks follow the grain boundaries, often surrounding grains entirely, while transcrystalline, also referred to as transgranular, cracks cross grains, often with an apparently random path...
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 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...
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
..., bending impact 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...
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
... illustrate 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...
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
... illustrate 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...
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
... fracture, 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...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... in a given environment. Stress-corrosion cracks ordinarily undergo extensive branching and proceed in a general direction perpendicular to the stresses contributing to their initiation and propagation. Figure 1(a) shows transgranular, branched chloride SCC in a specimen of type 304 stainless steel...
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
... oxides on fracture surface of carburized 20MnCr5 steel containing boron. SEM micrograph. Source: Ref 61 Fig. 27 Example of type 1 bending fatigue fracture initiation consisting of a short intergranular crack initiation site, a region of transgranular crack propagation, and overload...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... include: Brittle crack formation in a normally ductile metal. Brittle stress-corrosion cracks may be intergranular or transgranular, with the morphology being metal and environment dependent. Presence of tensile stresses. Tensile stresses can result from manufacturing, fabrication, or service...
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
..., 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 path. Intergranular fracture occurs when the grain boundaries...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003633
EISBN: 978-1-62708-182-5
... and electrode potential values at which intergranular and transgranular stress-corrosion cracking appear in a 10% NaOH solution at 288 °C (550 °F). (a) Alloy 600. (b) Alloy 800. (c) AISI type 304 stainless steel Fig. 14 Potential-pH diagram (Pourbaix) for iron in water at 25 °C (77 °F). A decrease...
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
...; these are transgranular, in contrast to the network of major secondary cracks. (Structure is continuous β phase with dispersed α phase.) The fracture is brittle, but the facets are small and irregular and have no detectable river patterns. SEM, 5000× Fig. 1152 Fracture surface of a fracture-toughness specimen...
Book Chapter

By Bruce Craig
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003634
EISBN: 978-1-62708-182-5
... solute diffusivities as compared to bcc materials, are less susceptible to hydrogen damage. As with ferrous alloys, hydrogen in nickel and its alloys may introduce intergranular, transgranular, or quasi-cleavage cracking, and although the macroscopic features appear to be brittle, on a microscopic scale...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
..., and transgranular cracking. By comparison, low-temperature brittle fracture consists of transgranular quasicleavage. At temperatures within the transition range, crack propagation occurs by both microvoid coalescence and quasicleavage, with the latter being confined predominantly to the central region...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
..., and transgranular cracking. By comparison, low-temperature brittle fracture consists of transgranular quasicleavage. At temperatures within the transition range, crack propagation occurs by both microvoid coalescence and quasicleavage, with the latter being confined predominantly to the central region...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
.... 9 Type 304 stainless steel integral-finned tube that cracked from chlorides and high residual stresses. (a) Section of integral-finned tube showing major crack (circumferential crack between fins). Dimension given in inches. (b) Branched transgranular cracking propagating from major crack. 45...