Results 81 to 90 of about 617 (192)
Effect of Composition and Microstructure on Hydrogen Damage Behavior of Pipeline Steel
MetalsHydrogen energy represents a crucial clean energy carrier and plays a critical role in achieving the national strategic goals of carbon neutrality and peak carbon emissions.
Weiwei Zhang +5 more
doaj +1 more source
Insights into gaseous hydrogen permeation behavior in welds of X65 pipeline steel
Welding in the WorldAbstract This study compares the gaseous hydrogen permeation behavior of API 5L X65 pipeline steel welds produced using hybrid laser–arc welding (HLAW) and gas metal arc welding (GMAW). Electron backscatter diffraction (EBSD) and high-pressure hydrogen permeation tests were used to evaluate the grain boundary ...
Safyari Mahdieh +2 more
openaire +2 more sources
Study of the Precipitation Process in Aging Steel Pipeline Weldments by Thermoelectric Power Means
Applied Sciences, 2018 The microstructural changes due to the aging process in steel pipeline weldments as a function of the thermoelectric power (TEP) were studied. In general, the thermoelectric methods are based on the well-known Seebeck effect.
Sergio Ramirez +5 more
doaj +1 more source
Experimental and numerical study on hydrogen-induced failure of X65 pipeline steel
Materials Science and Engineering: AHydrogen-induced fracture of X65 pipeline steel under in -situ electrochemical charging is investigated by using slow strain-rate tensile (SSRT) test, hydrogen diffusion test, fractography analysis, and finite element simulation. Smooth and notched tensile specimens with varying notch radii are utilized to ascertain the impact of stress triaxiality on ...
Meichao Lin +9 more
openaire +2 more sources
Evolution of Microstructure of High-Grade Pipeline Steel
Teshugang, 2008 With increasing the strength and toughness of pipeline steel,the corresponding evolution of structure is pearlite-ferrite(X65 grade),acicular ferite(X80 grade),particle bainite-ferrite(X100 grade)and lower bainite(X120 ...
doaj
Mathematical Simulation on Thermal Transmission of Secondary Cooling Process for Slab Concasting
Teshugang, 2009 With considering the boundary conditions for secondary cooling thermal transmission, a mathematical model for thermal transmission to suit slab caster has been established.
冯亮花, 朱苗勇, 刘坤, 曹晋伟
doaj
CRA clad pipes: Do their benefits justify sole selection?
Journal of Pipeline Science and EngineeringThis article presents a case study of a gas leak at a girth weld on a subsea spool. The leak occurred 14 days after the pipeline’s start-up. The pipeline in question was a 36-inch corrosion-resistant alloy (CRA) clad pipeline, with a carrier pipe made of
Ahmed Reda +2 more
doaj +1 more source
EVALUATION OF FRACTURE INITIATION ENERGY IN API X65 PIPELINE STEEL
, 2020 In this paper, energy absorption characteristics of spiral welded gas pipeline steel are investigated under impact loading. Emphasise is given to energy consuming processes before fracture propagation in tested linepipe steel.
Sayyed H Hashemi, Mohammad R Jalali
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MetalsHydrogen embrittlement (HE) is a critical concern for pipeline steels, particularly as the energy sector explores the feasibility of blending hydrogen with natural gas to reduce carbon emissions.
Hesamedin Ghadiani +3 more
doaj +1 more source
Laser assisted arc welding process for dry hyperbaric deep water application [PDF]
, 2013 Hyperbaric Gas Metal Arc Welding (GMAW) is an important technology for repair welding of deep sea pipelines and linking of existing pipeline networks to newer ones through tie-ins and hot-tap welding.
Ofem, Usani Unoh
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