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hydrogen-embrittlement fracture

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410439
EISBN: 978-1-62708-265-5
... and Industrial Scenarios Hydrogen Embrittlement—Mechanisms, Microstructure, and Fracture Hydrogen Attack References References 19.1 Mechanical Testing , Metals Handbook Desk Edition , 2nd Ed. , Davis J.R. , Ed., ASM International , 1998 , p 1308 – 1342 19.2 Impact Toughness...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... with creep and stress rupture, stress corrosion, and hydrogen embrittlement. brittle fracture ductile fracture ductility residual stress stress-strain curve THE THREE TYPES OF IDEAL SUBSTANCES (as discussed in Chapter 1 ) are the Hooke solid, the St. Venant solid, and the Newtonian liquid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270070
EISBN: 978-1-62708-301-0
... subjected them to high stress concentrations in the fillet region. They also concluded that the intergranular nature of the fracture, as revealed by scanning electron fractography, pointed to hydrogen embrittlement as a contributing factor. This chapter provides a summary of the investigation along...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090333
EISBN: 978-1-62708-266-2
... vulnerable to SCC due to hydrogen embrittlement. This chapter presents findings from several studies on this phenomenon, describing test conditions as well as cracking and fracture behaviors. It also discusses the effect of deformation on corrosion behavior, particularly for alloys without strongly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270113
EISBN: 978-1-62708-301-0
... 19. It was confirmed that the pins were cadmium plated. From the intergranular nature of the fracture, it is suspected that no “baking” treatment was given to the pin after cadmium plating, and the failure occurred due to hydrogen embrittlement. Fig. CH20.5 Energy spectrum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270196
EISBN: 978-1-62708-301-0
...Abstract Abstract Fastening screws used in fuel-injection pumps failed during assembly and were examined to determine the cause. Based on observations and the result SEM fractography and hardness measurements, the screws failed by brittle intergranular fracture due to hydrogen embrittlement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... include melting operations, heat treatments, welding, pickling, and plating. In addition, the cathodic reaction during in-service corrosion can also produce hydrogen. Characteristics of hydrogen embrittlement include a strain-rate sensitivity, a temperature dependence, and delayed fracture. As opposed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090067
EISBN: 978-1-62708-266-2
... H.K. , Atomistics of Fracture , Latanision R.M. and Pickens J.R. , Ed., Plenum Press , 1983 , p 733 10.1007/978-1-4613-3500-9_25 3.17 Hirth J.P. , Theories of Hydrogen Induced Cracking of Steels , Hydrogen Embrittlement and Stress Corrosion Cracking , Gibala R...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... pressure, the rupture of protective films, and anodic dissolution at active sites is associated with hydrogen embrittlement and stress-corrosion cracking (SCC). Decohesive rupture resulting from creep fracture mechanisms is discussed in greater detail in Chapter 11, “High-Temperature Failures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... marks somewhat similar to those observed in fatigue fractures Fig. 16 Example of hydrogen-embrittled steel. Intergranular fracture in an AISI 4130 steel heat treated to an ultimate tensile strength of 1281 MPa (186 ksi) and stressed at 980 MPa (142 ksi) while being charged with hydrogen...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
... (cations) to the cathode. Negatively charged ions (anions) are simultaneously attracted to the anode. Charged ions are present in solutions of acids, alkalis, and salts. Water, especially saltwater, is an excellent electrolyte. In pure water, there are positively charged hydrogen ions (H + ) and negatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... absence of slant fracture or shear lip. Low-power examinations of fracture surfaces often reveal regions having a texture different from the region of final fracture. Fatigue, stress-corrosion, and hydrogen embrittlement fractures may also show these differences because the final failure is due...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030148
EISBN: 978-1-62708-282-2
..., these failures have been collectively termed hydrogen embrittlement; this term persists even though it is improperly used to describe a multitude of failure modes involving hydrogen, several of which do not demonstrate the classical features of embrittlement (that is, reduced load-carrying capability or fracture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
.... , Retained Austenite and Tempered Martensite Embrittlement , Metall. Trans. A , Vol 10 , 1979 , p 1643 – 1651 10.1007/BF02811697 37. Banerji S. , McMahon C. , and Feng H. , Intergranular Fracture in 4340-Type Steels: Effects of Impurities and Hydrogen , Metall. Trans. A , Vol 9...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490329
EISBN: 978-1-62708-340-9
... in shape of stress-vs-time-to-failure curves and fatigue S-N curves, hydrogen embrittlement is often referred to as static fatigue. An alternative approach, which yields a more quantitative measure of the effects of hydrogen embrittlement, is the use of fracture mechanics. Precracked compact-type (CT...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130285
EISBN: 978-1-62708-284-6
... of microstructural transformation. A section describing the types of embrittlement from tempering, along with mechanical tests for the determination of temper embrittlement (TE), is presented. Various factors involved in the interaction of the TE phenomenon with hydrogen embrittlement and liquid-metal embrittlement...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
... into the Ohio River. This accident was found by the National Bureau of Standards to be caused by stress-corrosion cracking resulting from long exposure to hydrogen sulfide (H 2 S) in the air, because abnormal amounts of sulfur were found on the surfaces of the primary fracture ( Ref 3 – 5 ). The ship...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630101
EISBN: 978-1-62708-270-9
..., partly ferritic microstructure, for example, may fracture with dimple rupture in the ferrite regions but fracture by cleavage in the pearlite regions. A notched-bar impact test specimen may fracture by cleavage in some areas and with dimple rupture in others. A hydrogen-embrittlement fracture may have...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
... Oxide (?) Anhydrated ammonia Nitride CO/CO 2 /H 2 O Carbide CS 2 /H 2 O Carbide Titanium alloys Chloride Hydride Aluminum alloys, steels Various media Near-surface hydrogen The Phenomenon of SCC Overview of SCC Mechanisms Controlling Parameters Important Fracture...