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Keywords: seawater
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Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16515
... Abstract The corrosion resistance of metallic materials in natural seawater is arousing more and more interest from engineering companies and Oil & Gas end-users. Indeed, hydrotesting and flooding operations are very often conducted to check the quality of the vessels and piping systems...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12766
... ABSTRACT Thermally sprayed aluminum (TSA) has been used in offshore oil and gas infrastructure for decades. Their effectiveness in mitigating corrosion of steel structures in presence of seawater has been proven over the years. However, very little work is reported on the performance of TSA...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12808
... ABSTRACT Corrosion protection of structures operating in seawater is usually provided by cathodic protection (CP) by sacrificial anodes, often in conjunction with protective organic coatings. However, these methods have some limitations. Organic coatings, when used without CP, can provide...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12845
... ABSTRACT CuNi90/10 has been used for many decades as a corrosion resistant alloy for seawater applications. Its corrosion resistance mainly results from the formation of a stable, thin and very adhesive protective layer that forms in contact with seawater. The formation of this protective...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12816
... water is in short supply and additional water is often supplied by desalination of seawater. Two techniques commonly used for many years are MSF and MED. Both of these are thermal processes using steam as a source of heat and have many heat exchangers to encourage evaporation of vapour from the seawater...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12870
... ABSTRACT Duplex stainless steel (25Cr) can suffer from corrosion in chlorinated seawater at temperatures exceeding 20°C according to ISO 21457. To prevent corrosion, cathodic protection from attached sacrificial anodes is often used. However, this can cause hydrogen stress cracking (HSC...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13296
... ABSTRACT An investigation was carried out to study and compare the cavitation erosion behavior of a non-metallic fiber glass reinforced epoxy system and a metallic nodular cast iron (UNS F32800) alloy utilizing an ultrasonically induced cavitation facility in seawater. The cavitation tests...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13337
... ABSTRACT Nickel-Aluminum Bronze (NAB) and Copper-Nickel alloys (CuNi) are commonly used in seawater environments due to their strength combined with a good corrosion resistance and a high resistance to biofouling. However, localized corrosion failures have been reported and are often...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13338
... ABSTRACT The corrosion resistance of copper-nickel 90/10 and 70/30 tubes for heat exchangers was evaluated in 0.5 ppm-chlorinated seawater, under controlled service conditions in a bespoke test loop. The results were compared to Al-Brass tubes tested under the same conditions. Copper-Nickel...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13302
... ABSTRACT Stress corrosion cracking (SCC) of carbon steel may occur at near neutral pH in deoxygenated solutions with high bicarbonate concentration. Similar conditions are encountered in the annular space of flexible pipes when it is filled with CO 2 containing condensed water or seawater...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13071
... ABSTRACT This work presents laboratory testing performed to assess the fatigue response of wellhead extension joint welds for high-pressure, deepwater prospects subjected to low-frequency cyclic loading. The wellhead extension joints are exposed to seawater and are cathodically protected...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13061
... ABSTRACT This paper evaluates the effect of seawater ingress on the corrosion behavior of L80-1Cr in an oil production environment. The seawater ingress has been simulated by changing the ionic composition of the produced fluid from formation water to injected seawater and by testing...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13021
... management with these issues and use of copper alloys will be discussed. INTRODUCTION The US Navy has used copper alloys for a range of applications, especially those applications exposed to immersed, flowing seawater conditions. Corrosion issues with these alloys have been well documented. Even...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13010
... ABSTRACT Copper alloys are used in many seawater applications due to their environmentally assisted cracking resistance, general corrosion, pitting and crevice corrosion resistance as well as their anti-fouling properties. Age hardenable copper alloys such as copper-beryllium (Cu...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13124
... ABSTRACT In natural seawater, many parameters might influence the cathodic protection current demand such as potential, temperature, dissolved oxygen content, biofilm and fouling activity, and calcareous deposit formation. The actual deepsea environment cannot be easily reproduced...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13131
... ABSTRACT Styrenic materials, utilized in subsea wet insulation, have been exposed in long-term tests for 12 months at elevated temperatures and pressures in seawater according to ISO 12736:2014. The performance of these materials under this harsh exposure regiment shall be presented...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13123
... ABSTRACT The exploration and exploitation of deep seawater present promising prospects for many industries. Hence, the use of reliable materials resistant to corrosion in deep seawater conditions is required. In natural seawater, many parameters can influence the kinetics of corrosion...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11418
... ABSTRACT Cu-based alloys are frequently used for seawater pipings because of their resistance to chloride pitting as well as anti-fouling characteristics. One of the variations of Cu based alloys, 90-10 Cu-Ni alloy, which is 10 mass % of Ni alloyed to Cu, is often a very attractive choice...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10841
... are on the critical path, like with pipeline J-laying method. Although cathodic protection is an efficient, reliable and field proven method for seawater corrosion prevention on steel exposed areas of subsea coated pipelines, a quantitative assessment of the long term behavior of the pipeline coating...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10883
... & mining riser corrosion Cavitation Corrosion Behavior Publication Division precipitate flowline corrosion Subsurface Corrosion microcrack Ultrasonically tarish cavitation permission materials and corrosion Upstream Oil & Gas texas 77084 specimen alloy seawater grain boundary attack...

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