... ABSTRACT This paper presents hydrogen embrittlement data on small scale test specimens machined from a recent production API 5L X65 pipe and tested under high pressure hydrogen gas. Specimens were coated and uncoated to interrogate whether masking may influence hydrogen embrittlement...

... compatibility hydrogen retrieved vintage steel hydrogen energy fracture toughness offshore pipeline corrosion inhibition toughness embrittlement canada Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024...

... As of today, hydrogen can play a significant role in decarbonizing the world s energy supply to mitigate climate change and a suitable pipeline infrastructure will play a key role as well. However, for steel pipelines, it is well recognized that hydrogen may promote hydrogen embrittlement phenomena affecting...

... microstructure fracture toughness hydrogen embrittlement hardness specimen girth weld pipeline steel figure 1 placement embrittlement martin Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024...

... Corporation, Plate Products Technical Services & Solution Dept. Chiyoda-ku, Tokyo, Japan Takuya Hara Tohoku University, School of Engineering Sendai city, Miyagi, Japan ABSTRACT Hydrogen embrittlement can occur in line pipes under sour and highpressure hydrogen gas environments. The absorbed hydrogen...

... ABSTRACT Hydrogen embrittlement in the SAW and SMAW weld metal is investigated in this work by employing slow strain rate tensile (SSRT) tests and using a scanning electron microscope (SEM) to verify the fracture surface failure mode. Also, a comparison between the welded joints produced...

... government liquified natural gas hydrogen storage tank metals & mining hydrogen storage tank lng tank application carbon steel stainless steel hydrogen embrittlement liquid hydrogen material reliable evaluation program transformation ni steel alloy capacity liquefied storage tank...

... ABSTRACT Carbon monoxide (CO) contained in hydrogen gas mitigates hydrogen embrittlement (HE). This CO effect can be affected by the chemical composition of the steel surface. This study investigated the effect of chromium (Cr) on Cr-rich and Cr-low materials. During the fracture toughness...

... ABSTRACT Hydrogen uptake into steels used in corrosive or hydrogen-containing environment may cause degradation of material property leading to premature fracture under load bearing condition. Hydrogen embrittlement effect can appear in many forms of fracture behavior of steels including...

.... INTRODUCTION Understanding hydrogen trapping thermodynamics and kinetics is fundamental to interpreting hydrogen embrittlement. Different applications may experience different hydrogen-source boundary conditions. For example, hydrogen precharged mechanical test specimens may be considered as a closed system...

... ABSTRACT Hydrogen embrittlement of nickel based alloy UNS N07718 subject to cathodic polarization in seawater was studied. The effect of loading mode on the measured crack growth rate and the resulting crack morphology were evaluated. Three different loading modes were evaluated, slow rising...

... they can both enhance the resistance against H induced failure and strengthen the material. Well-designed H trapping sites may be a relevant strategy to enhance the H embrittlement (HE) resistance. This work studies five types of carbides in three Fe-C-X alloys with increasing carbon content: Ti, Cr, Mo, V...

...), Standard Test Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness Measurement , ASTM Edwards, BC, Bishop, HE, Riviere, JC, Eyre, BL (1976), An AES Study of Temper Embrittlement in a Low Alloy Steel , Acta Metallurgica, Vol. 24, pp. 957-967 Gould, GC (1967), Temper Embrittlement in High...

... resistance, weldability and mechanical properties. This combined with relative low price makes them a desirable material choice in offshore and industrial applications. A disadvantage with SMSS is the susceptibility to hydrogen embrittlement caused by transformation from austenite to martensite during...

... will be discussed to illustrate the need for advanced tools to assess the extent of materials degradation during high-temperature operation such as the regenerator in the FCCU cyclones. numerical simulation blocky precipitate fluid catalyst downstream oil & gas regenerator cyclone embrittlement...

... embrittlement seawater high strength steel riser corrosion specimen upstream oil & gas flowline corrosion materials and corrosion Proceedings of the Eighth (1998) InternatiollQl Offshore and Polar Engineering Conference Montreal, Canada, May 24-29, 1998 Copyright © 1998 by The International...

.... hydrogen thickness weld duplex stainless steel diffusible hydrogen level fernte percentage embrittlement plate thickness hydrogen level weldment tendency concentration stainless steel ferrite percentage weld deposit welding zeron 100 hydrogen concentration Proceedings of the Sixth (1996...

... point. In this study a chemical etching technique is developed to detect material degradation. An etching test using a picric acid solution with a wetting agent was found to have great potential for the non- destructive evaluation of grain boundary embrittlement caused by carbide and sigma precipitation...

... of the investigations. Results of these studies clearly show that nitrogen has a definite embrittling effect on the weld metal in the as-welded as well as in the strain aged condition, with the magnitude of embrittlement being phenomenal in the latter's case. Stress relieving effects only a moderate improvement...

... strength drilling fluid property heavy-thickness steel plate metals & mining toughness value offshore structure steel plate 400mpa embrittlement drilling fluid formulation toughness test piece requirement structural component submerged arc welding steel plate drilling fluid chemistry...