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hydrogen reaction embrittlement

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... of hydrogen embrittlement discussed include internal reversible hydrogen embrittlement, hydrogen environment embrittlement, and hydrogen reaction embrittlement. The article describes preservice and early-service fractures of commodity-grade steel components suspected of hydrogen embrittlement. Some prevention...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003667
EISBN: 978-1-62708-182-5
... Hydrogen reaction embrittlement If specimens have been precharged with hydrogen from any source or in any manner and embrittlement is observed during mechanical testing, then embrittlement is caused by either internal reversible embrittlement or by hydrogen reaction embrittlement. If hydrides...
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
... classification breaks hydrogen embrittlement into three types ( Ref 3 , 4 ): Internal reversible hydrogen embrittlement Hydrogen environment embrittlement Hydrogen reaction embrittlement This division is roughly equivalent to the classification of hydrogen embrittlement in steels...
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
... to be dominated by hydrogen embrittlement. These two basic types of environmental conditions have different phenomenological effects on cracking mechanisms, as briefly summarized in Table 2 for anodic and cathodic reactions. Corrosion/deformation cracking mechanisms including hydrogen embrittlement Table 2...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001371
EISBN: 978-1-62708-173-3
..., and solid-state transformations. It describes the electroslag process development and the applications of electroslag and electrogas processes. The article concludes with a discussion on weld defects, such as temper embrittlement, hydrogen cracking, and weld distortion. electrogas welding electroslag...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001268
EISBN: 978-1-62708-170-2
... include heat-treating furnaces, cleaning solutions, and pickling baths. Advantage of Mechanical Plating in Avoiding Embrittlement Mechanical plating deposits metals while eliminating or at least minimizing the risk of embrittlement caused by the coating process itself. A hydrogen-producing reaction...
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
...), or to an ordering reaction of the form Ni 2 (Cr, Mo). Figure 17 presents data that relate the reduction in area loss to ordering for the ordering alloy Ni 2 Cr charged with hydrogen. Fig. 17 Effect of the degree of order on the embrittlement susceptibility of Ni 2 Cr. Regions of intergranular (IG...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006087
EISBN: 978-1-62708-175-7
... such as precipitation from salt solution and gas, chemical embrittlement, hydride decomposition, and thermite reactions are also discussed. The article also discusses the methods used to produce powders electrolytically and the types of metal powders produced. The physical and chemical characteristics of these powders...
Image
Published: 01 January 1997
Fig. 24 Schematic reaction-rate surface illustrating the variation in crack-propagation rate with the rate-controlling parameters in the slip-dissolution, film-induced cleavage and hydrogen-embrittlement mechanisms for environmentally assisted cracking in ductile alloy/aqueous environment More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003718
EISBN: 978-1-62708-182-5
... vents. for the purpose of altering or controlling a pro- acid. A chemical substance that yields hydrogen cess. Examples include wetting agents in acid alkyd. Resin used in coatings. Reaction products ions (H when dissolved in water; also a sub- pickling, brighteners or antipitting agents...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.9781627081825
EISBN: 978-1-62708-182-5
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003825
EISBN: 978-1-62708-183-2
... the effects of acids, salts, and miscellaneous corrosive reagents on tantalum and applications for tantalum equipment in chemical, pharmaceutical, and other industries. Finally, the article presents a discussion on hydrogen embrittlement, the galvanic effects, and cathodic protection of tantalum and describes...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
...-corrosion cracking, with the anodic-dissolution process contributing to the progress of cracking. On the other hand, cases where cracking is accentuated by current in the opposite direction, which accelerates the hydrogen-evolution reaction, are considered to be hydrogen embrittlement. Tests...
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
... dissolution and removal of material from the crack tip. The most obvious cathodic mechanism is hydrogen evolution, absorption, diffusion, and embrittlement. However, a specific mechanism must attempt to explain the actual crack propagation rates, the fractographic evidence, and the mechanism of formation...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003828
EISBN: 978-1-62708-183-2
... and hydrogen embrittlement of uranium are discussed briefly. In view of its catastrophic nature, a detailed review of the corrosion of uranium in hydrogen (hydriding) has also been included. Protection of uranium using plating and surface modification is discussed, with particular emphasis on techniques...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003142
EISBN: 978-1-62708-199-3
... temperatures, but above −100 °C (−150 °F) hydrogen may severely embrittle titanium. The potential for embrittlement is enhanced where hydrogen flow rates are high or where coatings on the titanium become damaged. In unalloyed titanium and many titanium alloys, weld zones are just as resistant to corrosion...
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
... embrittlement appears to be divided into five types of mechanisms: Decohesion Pressure Adsorption Deformation Brittle hydride The balance between various phenomena is very difficult to sort out. Many researchers think that dissolution and hydrogen-induced cracking processes...
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
... brittle fracture, and the IG fatigue fracture. The article describes some typical embrittlement mechanisms that cause the IG fracture of steels. dimpled intergranular fracture hydrogen embrittlement intergranular brittle fracture intergranular fatigue intergranular fracture intergranular stress...
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
... to become the preferred path of crack growth. The article describes in more detail some typical mechanisms that cause IG fracture. It discusses the causes and effects of IG brittle cracking, dimpled IG fracture, IG fatigue, hydrogen embrittlement, and IG stress-corrosion cracking. The article presents...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003603
EISBN: 978-1-62708-182-5
... is often externally applied. For hydrogen damage, liquid metal induced embrittlement, and solid metal induced embrittlement, the stress is induced by reactions with the environment. Microbiologically Influenced Corrosion The final article “Microbiologically Influenced Corrosion,” discusses...