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internal reversible hydrogen 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
... with high-strength steels. There are many sources of hydrogen, several types of embrittlement, and various theories for explaining the observed effects. Hydrogen embrittlement is often classified into three types: Internal reversible hydrogen embrittlement Hydrogen environment embrittlement...
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...
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
..., is one of the oldest models for hydrogen damage ( Ref 2 ). This theory attributes hydrogen embrittlement to the diffusion of atomic hydrogen into the metal and its eventual accumulation at voids or other internal surfaces in the alloy, where it combines to form molecular hydrogen. As the concentration...
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
..., pressurized-water reactors, high-pressure hydrogenation units, and parts with cathodic protection. Hydrogen cracking has also been a serious concern when hydrogen is used as the liquid fuel in engines. There are three basic types of hydrogen embrittlement observed in metals: Internal reversible...
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: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003718
EISBN: 978-1-62708-182-5
... into an organic uid, or gas molecules, atoms, or ions by a solid compound by substitution or addition. (2) A acid embrittlement. A form of hydrogen em- or liquid. Compare with absorption. re nery process for chemically combining is- brittlement that may be induced in some met- oparaf n with ole n hydrocarbons...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003719
EISBN: 978-1-62708-182-5
...- integral L liter less than lb pound mum stress; gas constant; resistance less than or equal to LME liquid metal embrittlement Ri internal resistance maximum deviation. tolerance LMIE liquid metal induced embrittlement Rn noise resistance minus; negative ion charge ln natural logarithm (base e) Rp...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.9781627081832
EISBN: 978-1-62708-183-2
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0006540
EISBN: 978-1-62708-183-2
... of Corrosion SEM scanning electron microscopy ISO International Organization for SERS surface-enhanced Raman spectroscopy Engineers (now NACE International) Sh Sherwood number Standardization NHE normal hydrogen electrode SHE standard hydrogen electrode IR voltage drop; current multiplied by NIST National...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.9781627081849
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004225
EISBN: 978-1-62708-184-9
...-density polyethylene concentration EPRI HIC hydrogen embrittlement Kt fracture toughness; plane-strain Eq Agency (U.S.) HLW hydrogen-induced cracking Kth ethylene-propylene-diene HPEN high-level waste kg fracture toughness ER high-phosphorus electroless kPa threshold stress intensity for ER1 and monomer...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001039
EISBN: 978-1-62708-161-0
... Abstract This article examines the embrittlement of iron and carbon steels. It describes compositional, processing, and service conditions that contribute to the problem and presents examples of how embrittlement influences mechanical properties. Embrittlement due to hydrogen is the most common...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003668
EISBN: 978-1-62708-182-5
... on crack growth rates under cyclic load. The article examines corrosion-fatigue cracking along with the effects of cracking due to stress corrosion and hydrogen embrittlement, which often occur together. It explains how test parameters such as loading and environmental conditions impact crack growth...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... information on these types of failures is available in the articles “ Forms of Corrosion ,” “Stress-Corrosion Cracking,” and “Hydrogen Damage and Embrittlement” in Failure Analysis and Prevention , Volume 11 of the ASM Handbook , 2020. Atmospheric Corrosion Atmospheric contaminants vary widely...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
.... This threshold crack tip stress intensity factor is determined experimentally and is designated as K th . A number of theories have been advanced to explain the phenomenon of hydrogen embrittlement. These include the exertion of an internal gas pressure at inclusions, grain boundaries, surfaces of cracks...
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
... the likelihood of overload fractures are included. The article focuses primarily on the contribution of embrittlement to overload failure. The embrittling phenomena are described and differentiated by their causes, effects, and remedial methods, so that failure characteristics can be directly compared during...
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
... of an overload failure. It also presents examples of thermally and environmentally induced embrittlement effects that can alter the overload fracture behavior of metals. atomic structure brittle cracking crack propagation crystalline structure ductile cracking ductility environmentally induced...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... range of failures, including fatigue failure, distortion failure, wear failure, corrosion failure, stress-corrosion cracking, liquid-metal embrittlement, hydrogen-damage failure, corrosion-fatigue failure, and elevated-temperature failure. This article describes the classification of fractures...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0005697
EISBN: 978-1-62708-181-8
... hydrogen electrode SI Systeme International d'Unites S; image distance SLR single-lens-ret1ex (camera) SME solid-metal embrittlement S0 object distance SS slow-slow (wave form) STA solution treated and aged t thickness; time T temperature Tm' TM melting temperature tcp topologically close-packed TD...