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environmentally assisted fracture

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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
... a description of the main fracture modes and their characteristic fractographic features. It discusses the four principal fracture modes: dimple rupture (or fracture), cleavage, fatigue, and intergranular fracture. The article provides information on special cases of environmentally assisted fracture...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003309
EISBN: 978-1-62708-176-4
... fracture mechanics metals environmentally assisted crack growth polymers nanoscale environmental effects indentation-induced cohesive cracking scanning probe microscopy Precracked Specimen Testing qxidizing Gas acidified chloride ceramics liquid metals environmentally assisted cracking...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... growth by fatigue, creep, or environmentally-assisted cracking. Corrosion and wear are another form of progressive material alteration or removal that can lead to failure or obsolescence. This article primarily covers the topic of abrasive wear failures, covering the general classification of wear...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002362
EISBN: 978-1-62708-193-1
... localized corrosion (e.g., pitting or grain boundary attack), fracture of inclusions, and so on, where the processes controlling initiation differ from those that control propagation. In some systems, very small environmentally assisted cracks (e.g., ≤20 μm) have been shown to behave exactly the same...
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
... Additionally, a large grain size also plays a role in causing a change from TG to IG cracking and can enhance any of the above mechanisms Environmentally assisted fracture may be fracture at elevated temperature, but it could also include interaction of the material with the environment. This would...
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
... ): Environmentally assisted fracture may be fracture at elevated temperature, but it could also include interaction of the material with the environment. This would include hydrogen embrittlement, liquid metal embrittlement, solid metal embrittlement, oxidation or reduction potentially in the grain boundaries...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002361
EISBN: 978-1-62708-193-1
..., are also produced in environmentally assisted cracking, it is argued that hydrogen in the lattice merely assists these fracture processes. This mechanism has received some experimental support recently in that, using environmental cell transmission electron microscopy, hydrogen is seen to enhance...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
.... 2 Bolt that failed in fatigue. The smooth dark areas are from initial fatigue cracking, now coated with dark adherent oxide. This initial cracking took place some years prior to the later fracture, the surface of which is covered by a less adherent rust coating. Fig. 3 Electrical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... this basic list, together with hydrogen damage, environmentally-assisted fracture, and high-temperature corrosion, for preliminary classification of a corrosion-related failure. The general features that may be observed for general, galvanic, crevice, and pitting corrosion are: General attack (uniform...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002403
EISBN: 978-1-62708-193-1
... room-temperature mechanical properties and fatigue endurance limits are summarized in Table 2 . Additional information on corrosion and environmentally assisted fracture of stainless steels is contained in Ref 2 and elsewhere in this Volume. Compositions of common structural stainless steels...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003632
EISBN: 978-1-62708-182-5
... of the environmentally induced fractures that were previously termed liquid-metal embrittlement are now considered solid metal induced embrittlement. Because satisfactory mechanistic models have not been developed for any of these forms of environmental cracking, the prediction of environmentally assisted cracking...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001477
EISBN: 978-1-62708-173-3
..., ductile fracture, plastic collapse, fatigue, creep, corrosion, and buckling. This article focuses on the broad categories of these failure modes: fracture, fatigue, environmental cracking, and high-temperature creep. It also discusses the benefits of a fitness-for-service approach. brittle fracture...
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
... fracture STRESS-CORROSION CRACKING (SCC) describes service failures in engineering materials that occur by slow environmentally induced crack propagation. The observed crack propagation is the result of the combined and synergistic interaction of mechanical stress and corrosion reactions...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003666
EISBN: 978-1-62708-182-5
... various steels and alloys and how to interpret test results. constant-load testing constant-strain testing slow-strain-rate tension testing stress corrosion cracking stress corrosion testing THERE ARE A NUMBER of corrosion-related causes of the premature fracture of structural components...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005411
EISBN: 978-1-62708-196-2
... and demand precise environmental-control capability and extremely high resolution in the measurement of displacements in cracked bodies associated with creep strains and in the measurement of crack increments at high temperatures. Such experimental capabilities and the concepts of nonlinear fracture...
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
...Abstract Abstract Hydrogen damage is a form of environmentally assisted failure that results from the combined action of hydrogen and residual or applied tensile stress. This article classifies the various forms of hydrogen damage and summarizes the theories that seek to explain these types...
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
... magnification: 500×. Courtesy of Stork Technimet, Inc. New Berlin, WI Fig. 14 Fatigue fracture through a type 356.0 aluminum alloy in the T6 condition. Original magnification: 5000×. Courtesy of Stork Technimet, Inc. New Berlin, WI Environmentally Induced Fracture Hydrogen-Assisted Cracking...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004147
EISBN: 978-1-62708-184-9
... for by an environmentally assisted cracking mechanism (i.e., IASCC is not a purely mechanical, phenomenon). Water chemistry and electrochemical potential effects are reflected in the sharp increase in IASCC cracking with increasing dissolved oxygen ( Ref 1 , 5 ). Cracking is typically not observed in hydrogenated water...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003631
EISBN: 978-1-62708-182-5
... failures under static stress, such as sodium chloride or sodium sulfate solutions. Environmental effects can usually be identified by the presence of corrosion damage or corrosion products on fracture surfaces or within growing cracks. Corrosion products, however, may not always be present. For example...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... nickel, 600 Hydrogen gas charged at 723 K, tested at room temperature K500 Cathodic charge, seawater Fig. 3 Potential ranges of environmentally assisted cracking by (I) hydrogen embrittlement, (II) cracking of unstable passive film, and (III) cracking initiated at pits near the pitting...