.... In the quiescent tanks, the continuous renewal was adjusted to allow complete replenishment of the 500L-exposure tanks twice per day. For stagnant exposures, the 500L-tanks were filled with natural seawater just before the start of the exposures. For all conditions, the oxygen content, pH and salinity were...

.... In addition, the specimen employing 100% N2 back shielding gas with 2,000 ppmO2 was acceptable in corrosion test. It was observed that the corrosion resistance of SDSS weld joint is mainly affected by depletion of nitrogen in the surface of root bead and less affected by oxygen content levels. The nitrogen...

... on these purposes (e. g. effect of dissolved oxygen content, temperatures, chlorination at different levels, potential or recently developed alloys, etc.). In this work, the open circuit potential of different stainless steel grades as well as nickel based and copper based alloys has been systematically measured...

... Upstream Oil & Gas corrosion rate texas 77084 co 2 Pipeline Corrosion riser corrosion inspection Publication Division corrosion permission Houston reboiler steam pipe condensate flowline corrosion Subsurface Corrosion Failure analysis steam condensate oxygen content Boiler...

... of such materials to localized corrosion and sulfide stress cracking (SSC) is a major consideration, particularly in the vicinity of welds. A systematic investigation has been carried out into the effect of weld oxide on the SSC susceptibility of UNS S32205 duplex stainless steel by varying the oxygen content...

... different concentrations of the local oxygen content (Material: C86; Solution: 5 % NaCl; pH = 3 (acidified with H2SO4); flushing with different gases). For these chosen environmental conditions the results shows that the local oxygen content has a significant influence on the resulting permeation current. 1...

... as the oxygen content decreased in a CO 2 -O 2 -H 2 S-SO 2 wet gas environment is mainly caused by the H 2 S-SO 2 acidic environment and the protection of the Fe 3 O 4 . flowline corrosion Subsurface Corrosion outer rust layer freight & logistics services well integrity Publication Division...

... of dissolved oxygen content on corrosion, the dissolved oxygen contents were controlled at 0, 100, 300 and 2000 ppb, respectively. The exposing time was 200, 400, 600, 800 and 1000 h. The surface morphologies and composition were observed using SEM, EDS and XRD. The cross-sectional structure and element...

... by the confined seawater between metallic tubes and polymer matrix of an umbilical. This work reports corrosion potential and oxygen content measurements in the confined zone between the metallic tubes and the polymer matrix of an umbilical. These measurements were performed using micro-electrodes on a 2 meter...

... concentration concentration steel riser corrosion partial pressure sensor electrochemical oxygen sensor Corrosion Management bi bi 2 electrolyte tube oxygen content sensor head sensor output 2009 Copyright ©2009 by NACE International. Requests for permission to publish this manuscript in any form...

... oxygen content (from a fraction of a percent to a few percent) may have an adverse impact on MEG reclamation process equipment due to the oxygen absorbed from the "inert" gas. An alternative to inert gas is fuel gas. This oxygen-free gas is typically available but has application consequences due...

... Corrosion oxide scale materials and corrosion LBE Pipeline Corrosion well integrity metals & mining riser corrosion Thickness oxide layer exposure spinel layer od steel corrosion rate experiment alloy corrosion attack steel specimen structural material flow rate oxygen content nucl...

... well integrity surface exposure Pipeline Corrosion flowline corrosion Subsurface Corrosion polypropylene line corrosion rate corrosion vertical riser buoyant polypropylene line deep ocean corrosion corrosion behavior riser corrosion deep ocean environment oxygen content specimen sTu US...

... are presented. There was very little, if any, oxygen in the process stream and it was concluded that the cause of failure was chloride concentration to extremely high levels due to an evaporation process. The test programme established acceptable limits in terms of temperature, chloride and oxygen content...

... circulation rate, oxygen content and cathodic protection application on the corrosion rate of the underlying metal surface. The results are discussed in terms of corrosion risk for coated pipelines under cathodic protection. EXPERIMENTAL APPROACH Pinhole, Rock Indentation Set-up Permeation cell This cell...

... INTRODUCTION ABSTRACT A test programme was conducted to study the corrosion behaviour of a range of steels and CRAs in low oxygen content (20 & 200 ppb) seawater. The test materials ranged from carbon and low alloy steels through austenitic, martensitic and duplex stainless steels...

.... The ordinary matching type gas metal arc welding (GMAW) consumables have the inevitable problem of poor toughness. That is owing to the elevation of oxygen content in weld metal by invasion from active gases added to the shielding as. GMA welding in the pure inert shielding gas has been investigated applying...

..., pollution and contamination, alloy surface films, geometry and surface roughness, galvanic interactions, fluid velocity characteristics and mode, oxygen content, heat transfer rate, and temperature. Understanding how these factors may affect experimental results can help the design of seawater corrosion...

.... The Ni-Cr and Ni-Cr-Mo DyAir coatings revealed no gas permeability and extremely low oxygen content. Compared to the electric arc and HVOF-sprayed coatings, the DyAir coatings exhibited higher hardness and better crack resis- tance. During aging at 400 and 700 C the bond strength and crack resistance...

... protective oxide coating dissolves into a rapidly moving water, or a water/steam mixture.? In the case of plain carbon steels, this process occurs under very specific, well-defined environmental parameters. Principal among these parameters are temperature, pH, oxygen content, and water velocity...