hydrogen embrittlement
How To Test For Hydrogen Embrittlement
... • RSL testing was utilized to determine resistance to hydrogen embrittlement stress cracking for 1” to 4” diameter threaded rod used on east span of San Francisco-Oakland Bay Bridge.[r] ...
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Hydrogen Embrittlement Behavior on Microalloyed Pipeline Steel in NS-4 Solution
... the hydrogen evolved during the corrosion ...the hydrogen generated by corrosion process causes cracking by two complementary hydrogen mechanisms: HELP and the hydrogen embrittlement ...
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Influence of Total Strain Amplitude on Hydrogen Embrittlement of High Strength Steel
... infer hydrogen induced ...words, hydrogen embrittlement showed strain amplitude independence, in accordance with Mansilla et ...as hydrogen interactions with inclusions and segregation bands ...
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Hydrogen Embrittlement Behavior of 18Ni 300 Maraging Steel Produced by Selective Laser Melting
... Excess hydrogen accumulates in pores and internal cracks, and once a critical tensile stress is applied hydrogen promotes fracture propagation and contributes to brittle fracture ...to hydrogen ...
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Evaluation of Susceptibility to Hydrogen Embrittlement—A Rising Step Load Testing Method
... of hydrogen embrittlement. Some hydrogen is generated during the cleaning and pickling cycles, but by far the most significant source is cathodic inefficiency, which is followed by sealing the ...
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Evaluation of Susceptibility to Hydrogen Embrittlement of 7075 Aluminum Alloy by Hydrogen Addition Using Flax Treatment Method
... of hydrogen on their mechanical properties than with steels because of their stable and protective oxide films, which act as a strong barrier for hydrogen ...adding hydrogen to aluminum alloys and ...
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Understanding and mitigating hydrogen embrittlement of steels : a review of experimental, modelling and design progress from atomistic to continuum
... by hydrogen residing in materials, a process that can have catastrophic ...of hydrogen can cause. Following catastrophic fractures related to hydrogen we will then discuss where hydrogen is ...
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Understanding and mitigating hydrogen embrittlement of steels: a review of experimental, modelling and design progress from atomistic to continuum
... the hydrogen-induced slip localisation have been pro- vided by Birnbaum et ...for hydrogen-enhanced dislocation mobility can lead to macroscopic shear localisation or a necking bifur- ...to hydrogen ...
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Effect of trapping and temperature on the hydrogen embrittlement susceptibility of alloy 718
... to hydrogen embrittlement were investigated to identify both the effect of hydrogen trapping on hydrogen embrittlement and the role of temperature in the hydrogen-trapping ...
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Hydrogen Embrittlement Behavior of Ultrahigh Strength Mooring Chain Steel Evaluated by the Slow Strain Rate Test
... the hydrogen embrittlement behavior of an ultrahigh strength mooring chain steel with a tensile strength of 1150 MPa was ...The hydrogen was precharged into the notched specimen by electrochemical ...
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Effect of Cathodic Potentials on the Hydrogen Embrittlement Susceptibility of 10Ni5CrMo Steel
... the hydrogen embrittlement susceptibility of high strength steel under cathodic protection, and a good understanding of the cathodic potential of medium and low strength steel has been achieved ...the ...
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Continuum level simulation of the grain size and misorientation effects on hydrogen embrittlement in nickel
... in hydrogen embrittlement study of nickel based alloys which are prone to hydrogen degradation while possessing acceptable corrosion resistance and high strength (Stenerud et ...in hydrogen ...
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Simulation of Hydrogen Embrittlement at Crack Tip in Nickel Single Crystal by Embedded Atom Method
... investigate hydrogen embrittlement of a nickel single crystal, which is composed of 163311 nickel atoms on the nanometer scale and has a [011]-oriented notch under uniaxial tension along the [100] direction ...
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A Comparative Assessment of Hydrogen Embrittlement: Palladium and Palladium Silver (25 Weight% Silver) Subjected to Hydrogen Absorption/Desorption Cycling
... of hydrogen embrittlement on metallic systems have been investigated through determination of the mechanical properties of two metallic systems that were exposed to ...of hydrogen ...
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Maintenance Strategy for Prevention and Protection of Industrial Component from Failure due to Hydrogen Embrittlement
... Hydrogen embrittlement is a well-known phenomenon in which a metal is weakened by the incorporation of hydrogen in or below its ...surface. Hydrogen embrittlement (HE) of steels is of ...
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Application of Grain Boundary Engineering to Improve Resistance of Alloy 625 Plus to Hydrogen Embrittlement
... 625 plus is an ultra-high strength, highly corrosion-resistant nickel based alloy designed for use in extreme environments, such as sour gas wells. It is an age hardened alloy, with γ’ as the primary strengthening phase. ...
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The Effect of Pre Strain on the Resistance to Hydrogen Embrittlement in 316L Austenitic Stainless Steel
... before hydrogen charging on the resistance to hydrogen embrittlement (HE) in the 316L austenitic stainless steel was investigated through the slow strain rate tensile test (SSRT), transmission ...
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About One Model of Hydrogen Embrittlement
... Abstract. Hydrogen embrittlement of materials is one of the important factors at an estimation of serviceability of ...of hydrogen influence on properties of metals and alloys, there are enough ' ...
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Research on hydrogen embrittlement sensitivitiy of hydrogenation reactor material by small punch test
... Small punch test is a near-nondestructive sampling of in-service micro-sample testing technology. After more than three decades of development, it has made great progress in obtaining various mechanical properties of ...
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Hydrogen embrittlement behavior of Ni-Ti shape memory alloy with different microstructures in acidic fluoride solution
... that hydrogen embrittlement of all the specimens does not occur after immersion for only 2 ...absorbed hydrogen after immersion for 2 h was approximately 50 mass ppm for all of the speci- ...absorbed ...
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