... 2025 26 March 2025 © 2025, AMPP 2025 Alloy 625 heat exchanger tubes of hydrogenation heat exchangers hydrogen hydrogen embrittlement pitting corrosion C rude oil contains a variety of corrosive compounds. For example, some inferior crude oils have high contents of S, N, Cl...

...: (a) with grout fill condition as a parameter and (b) solution filled tendons. concrete structure corrosion galvanic couple hydrogen embrittlement post-tensioned tendons M odern construction of long-span bridges benefits from precast reinforced concrete segments that are connected by post...

...Yang Zhao; Jidong Wang; Feng Su; Lingyue Hu; Qifan Wu; Wenlong Qi; Tao Zhang; Fuhui Wang The hydrogen embrittlement susceptibility of electron beam melted Ti-6Al-4V alloy (ET) was compared with that of conventional wrought alloy (WT). Hydrogen permeation, electrochemical, and slow strain rate...

... in these alloys exhibited relatively constant, higher velocity, with extremely limited corrosion commensurate with oxidation of a free surface in this environment resulting in approximately 5 nm oxide layer. cracking environmentally assisted cracking hydrogen embrittlement in situ scanning electron...

... with field testing (259 d), comprised of four-point bend SCC, U-bend SCC testing (ASTM G30), and atmospheric contaminant measurements. The pitting resistance results, corrosion morphology, stable pit safe range, SCC results in the lab and in the field, and hydrogen embrittlement (HE) testing by slow strain...

.... We have previously reported that hydrogen embrittlement in 7xxx alloys originates from trapped hydrogen at the MgZn₂ precipitate interface, providing high hydrogen trapping energy. We propose the dispersion of Mn-based second-phase particles as a novel technique for preventing 7xxx...

...) profiles revealed evidence of susceptibility to hydrogen embrittlement. The measured crack growth rates under cyclic loading exhibited a strong dependence on loading frequency, and no evidence of a plateau in FCGR at low frequencies. The SCGR for various alloys was a function of not only the applied value...

... sour medium and was ascribed to the presence of Nb carbides nanoprecipitates, as revealed by the scanning transmission electron microsccopy analysis. 19 May 2021 12 June 2022 12 June 2022 © 2022, AMPP 2022 electrochemical impedance spectroscopy hydrogen embrittlement...

... for the microstructure containing primarily the G.P. zones, and the decrease in dynamic recovery for microstructures consisting predominantly of η′/η precipitates. © 2022, AMPP 2022 activation volume aluminum alloy atomic strain mapping hydrogen embrittlement A large number of engineering materials...

... the grooves, ⁷ during environmental testing. diffusion and permeation duplex stainless steels environmentally assisted cracking fracture mechanics testing hot isostatically pressed hydrogen embrittlement hydrogen-induced stress cracking hydrogen transport J R-curve stress...

... hence, absorption tomography could not be used to map the two phases, and PCT was adopted instead. 3D microstructure and phase distribution duplex stainless steels environmentally assisted cracking hot isostatically pressed hydrogen embrittlement hydrogen-induced stress cracking hydrogen...

... for sour environments to prevent different forms of hydrogen embrittlement. Materials used in sour services are regulated by the ISO 15156-2 standard, which imposes a maximum hardness of 250 HV (22 HRC) and allows up to 1.0 wt% Ni additions due to hydrogen embrittlement concerns. Low alloy steels...

... surfaces. The unique service conditions require materials that are not only resistant to localized corrosion and stress corrosion cracking at high temperatures, but also hydrogen embrittlement at lower temperatures. High-strength nickel-based alloys, in particular Alloy 718 (UNS N07718 ⁽¹...

... significance accompanied by perspectives describing the impact of the article and the evolution of the field. © 2020, NACE International 2020 cathodic protection hydrogen embrittlement pipelines probability steel stress corrosion cracking The cracking of steel in H₂S (sulfide...

... time-temperature parameters and finally tested to assess their mechanical properties and resistance to stress corrosion cracking, sulfide stress cracking, galvanic-induced hydrogen stress cracking, and hydrogen embrittlement. UNS N06625 forged bars were heat treated by applying the best cycle...

...Renata Latypova; Oskari Seppälä; Tun Tun Nyo; Timo Kauppi; Sakari Pallaspuro; Saara Mehtonen; Hannu Hänninen; Jukka Kömi Hydrogen embrittlement is a well-known problem with high-strength steels. An important aspect of hydrogen embrittlement research is the effect of the prior austenite grain (PAG...

... hydrogen embrittlement hydrogen permeation sulfide stress cracking High-pressure/high-temperature (HPHT) wells in deep and ultra-deep oil and gas fields have been developed during the past decades. HPHT generally refers to pressures of 103.4 MPa (15,000 psi) or greater and temperatures of 177°C...

...Ramgopal Thodla; Narasi Sridhar; Herman Amaya; Behrang Fahimi; Christopher Taylor Hydrogen embrittlement of low alloys steels at three different strength levels (745 Mega Pascals [MPa], 904 MPa, and 1,166 MPa) were evaluated under cathodic polarization. Crack growth rate measurements were performed...

... to CP, and substantial accumulations of calcareous deposits were found upon initial inspection. hydrogen embrittlement hydrogen induced stress cracking oil and gas subsea super duplex stainless steel Introduced in the late 1950s, duplex and super duplex stainless steels (DSS and SDSS...

... Zn: 110 AA5456 surface area ratio]), and by coupling with the IOZRP (with an exposed area as low as 0.67 cm² [67 primer: 350 AA5456 surface area ratio]). Results are interpreted within the context of a coupled anodic dissolution-hydrogen embrittlement model developed previously...