Inhibition of Weld Corrosion in Flowing Brines Containing Carbon Dioxide [PDF]
, 2009 The aim of this research was to study the effectiveness of a typical oilfield corrosion inhibitor, which is considered to be a green inhibitor (non toxic to the environment) in controlling internal corrosion of welded X65 pipeline steel in brines ...
Alawadhi, Khaled
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Hydrogen distribution and redistribution in the weld zone of constructional steels [PDF]
, 1999 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The invention of electric arc welding revolutionized the steel construction industry, but also brought some problems when the welded region has inferior ...
Smith, Richard Dominic
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Flow accelerated preferential weld corrosion of X65 steel in brine [PDF]
, 2014 Preferential weld corrosion (PWC) remains a major operational challenge that jeopardizes the integrity of oil and gas production facilities. It is the selective dissolution of metal associated with welds, such that the weld metal (WM) and / or the ...
Adegbite, Michael Adedokun
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Weld formation during material extrusion additive manufacturing. [PDF]
Soft Matter, 2017 A combination of thermography, rheology, and fracture mechanics captures weld formation during the material extrusion process.
Seppala JE +4 more
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An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]
, 2011 A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas +2 more
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Effects of Sc on laser hot-wire welding performance of 7075 aluminum alloy
Materials Research Express, 2020 In order to clarify the effects of Sc modification on laser hot-wire welding performance of 7075 high strength aluminum alloys, the changing rules of weld formation, microstructure, element loss, mechanical performances and pores of weld joints were ...
Shichun Li +5 more
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Weld Formation in Microgravity.
ISIJ International, 1998 In order to investigate the effect of gravity on the formation of a weld, gas tungsten arc (GTA) welding was performed both in a microgravity environment and in a terrestrial environment. The microgravity environment was produced for 10 sec with less than 10-5 G by a drop-shaft type microgravity system at Japan Microgravity Center (JAMIC). The material
Nogi, Kiyoshi +4 more
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Investigation of metal flow in bridge die extrusion of Alloy 6063 and subsequent effect on surface quality and weld seam integrity [PDF]
, 2013 This paper describes a detailed study of tube extrusion by simulation using finite element method (FEM). The finite element model used one-sixth of symmetry. The extrusion load, emperature evolution and metal flow were predicted.
Sheppard, Terry, Velay, Xavier, Niu, L.
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Preferential weld corrosion of X65 pipeline steel in flowing brines containing carbon dioxide [PDF]
, 2011 The aim of this research was to investigate the cause of the severe localised corrosion that sometimes occurs at welds in carbon steel pipelines carrying hydrocarbons and inhibited brines saturated with carbon dioxide.
Robinson, M. J. +3 more
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Effect of narrow groove MAG welding oscillation parameters on weld formation
Journal of Hebei University of Science and Technology, 2017 In order to solve the problem of narrow groove wall fusion, improving the weld formation, the welding test of different oscillation width and frequency is carried out by adopting the narrow high-speed swing MAG welding torch.
Yu LUO +4 more
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