.... Experimental approach is introduced to investigate the hydrogen-enhanced fatigue susceptibility of the pipeline material and related future research is recommended. Finally, a conceptual framework is proposed for fatigue assessment of pipelines used for pure hydrogen transport and its applicability...

... pressure gives higher susceptibility to crack propagation. corrosion inhibition h2s management susceptibility ssc test production chemistry stress intensity factor ssc propagation behavior partial pressure upstream oil & gas propagation behavior hard-zone depth international ocean...

... phase) at grain boundaries helps in pinning grain boundaries at high temperature and improving creep resistance. However, it lowers the ductility at low temperature and has shown to increase susceptibility to hydrogen embrittlement(Cassagne et al. , 2008, Galliano et al. , 2014, Liu et al. , 2005, Li...

... ABSTRACT This paper addresses the development of an integrity management (IM) plan for offshore production facilities susceptible to wet H 2 S damage and CO 2 corrosion, as well as the challenges associated when both damage mechanisms are present, possibly in combination with erosion...

... the weldability of these high manganese steels must be evaluated. This study evaluates the effect of tungsten (W) and boron (B) additions on the microstructure and solidification cracking susceptibility of high-Mn steel filler metals. Five compositions were initially tested with W additions up to 4.7 wt% and B...

... not achieved the same degree of success. Ku and Juang proposed a piezocone test (CPTu)-based CRR model that is applicable to both sand-like and clay-like soils. In this paper, this CPTu-based CRR model is used to assess the liquefaction susceptibility of the clay-like soils. The results show that for the most...

.... The present investigation revealed that the uniform acicular ferrite microstructure provides superior HIC resistance and higher resistance to crack propagation over banded microstructure, which can be attributed to more uniform plastic deformation in acicular microstructure. hic test susceptibility...

... diffusivity midstream oil & gas high-strength steel hydrogen steel pipeline piping simulation hydrogen permeation rate pipeline steel steel solubility pipeline pipeline project piping design susceptibility dislocation metals & mining hydrogen diffusivity Strain Ageing of High...

... ABSTRACT The hot cracking susceptibilities of austenitic high manganese steels (HMnS) were evaluated by using a longitudinal/transverse Varestraint technique as a function of Al content. The HMnS is sensitive to hot cracking due to the formation of low melting eutectic [γ+(Fe, Mn) 3 C] during...

... for the fabrication of LNG tanks and, thus, the weldability of such alloys needs to be considered. The solidification cracking susceptibility of various high-Mn steels has been assessed. Cast Pin Tear Testing (CPTT), Single-Sensor Differential Thermal Analysis (SS-DTA™), Scheil solidification simulations, optical...

... ABSTRACT Influence of heat treatment on the HIC susceptibility in the process pipe steel was investigated with respect to the hydrogen diffusion behavior by employing the electrochemical permeation technique. In order to examine the change in morphology of precipitates in acicular ferrite...

... and of the inclusion distribution. The HIC susceptibility increases as the ratio of the thickness (t) and pipe diameter (D) is increased since the level of strain is increased. The thickness of steel pipe affects not only the t/D ratio but also the size and distribution of the inclusion in the steel. Between the 12 mm...

...Numerical Study on Strain Behavior during Solidification Evaluation of Solidification Cracking Susceptibility in Low-carbon Austenitic Stainless Steel Laser Weld Junya Yamada, Shigetaka Okano, Hiroaki, Mori, Masahito Mochizuki and Kazutoshi Nishimoto Division of Materials and manufacturing Science...

... shown that excessively cold worked materials can have higher susceptibility to SSC (Sourmail, 2006). Industry standards also recognize that plastic strain can have a detrimental effect on mechanical properties, to include SSC resistance. Additional mechanical testing is required for any pipeline...

... of the repairs or due to unfavourable weather conditions, e.g. strong winds. Both effects will lead to hardly controllable motions of the weld gaps during repair welds on such buildings. Reliable knowledge about the weld gap motion amplitudes and frequencies and the susceptibility for heat cracking...

... weld erw condition resistance hic resistance optimization seam centerline segregation thickness bondline penetrator ratio excellent hic resistance erw pipe correlation segregation optimum erw condition metallurgical factor pipe oxide inclusion susceptibility Correlation...

... toughness at low temperatures and hot cracking susceptibilities at the high heat input. Target was 355MPa yield strength and impact toughness below -20oC. The developed steel shows sufficiently high strength and high impact toughness at -40oC by the 55.0kJ/mm heat input. INTRODUCTION Container ships have...

... reasons. Most of the existing research deals with the improvement of chemical composition from metallurgical aspect. experiment btr specimen scale parameter serial computation procedure trans-varestraint test interface element relation crack length finite element method susceptibility...

... of new surfaces. mesh division fish bone specimen propagation specimen interface element welding speed experiment bone specimen welding deformation heat input temperature dependent interface element bonding strength strength susceptibility crack length transverse cross section...

... and susceptibility, to rate the inspection priority so that structural details with higher risk receive more attention. This approach, named priority assessment, should provide the basis for developing inspection strategies which could enhance the current practice. INTRODUCTION When a tanker or a very large crude...