AMPP Store - Products tagged with 'crevice corrosion'

Available for download

Corrosion Resistance of AISI 316 (UNS S31600) Stainless Steel at Near Deaerated-Seawater Systems under Stagnant and Dynamic Flow Conditions

Product Number: 51323-19283-SG

Author: Gustavo Brandolin, Matheus Biava, Nathalia Mota, Daiana Souza, Gabriela Souza, Rodrigo Landim, Luis Rodrigues, Arthur Azevedo, Javier Velasco

Publication Date: 2023

$20.00

UNS S31600 is usually selected for pipes to be applied under conditions where cleanliness is an essential factor. As the lines around Sulfate Removal Unit (SRU) have this requirement (considering the membranes sensibility to any debris), it is common to find this alloy as the preferred one in the material selection criteria for systems like this in Floating Production Storage and Offloading units (FPSO) where the deaerator tower is upstream the SRU, with the role to limit the oxygen content up to 10 ppb in the seawater.

Although the selection of UNS S31600 agrees with ISO 21457 and NORSOK M-001 for this part of seawater treatment system (Figure 1), in 2019 several pits were noticed at pipes downstream the SRU in a FPSO being operated at Brazil Santos basin.

Available for download

Corrosion Resistance of Duplex Stainless Steels for CCS Application under the Liquid Phase in Equilibrium with Supercritical CO2 Containing Slight Amount of O2

Product Number: 51324-20598-SG

Author: Kyohei Kanki; Daisuke Matsuo; Yuji Arai; Hisashi Amaya

Publication Date: 2024

$40.00

In carbon dioxide capture and storage, CO2 emitted from various industries containing impurities is captured and injected underground in dense or supercritical phase through tubings. In order to evaluate corrosion resistances of materials in the supercritical CO2 with a slight amount of O2, corrosion tests were performed under the conditions of 5 mass% NaCl equilibrium with CO2, containing with the various amount of O2 at total pressure of 130 bar and 100 °C. Super Martensitic Stainless Steel (UNS S41426), Duplex Stainless Steel (UNS S82551), and Super Duplex Stainless Steel (UNS S39274) were evaluated. Localized corrosion was observed in S41426 at conditions higher than 200ppm O2 (0.026 bar O2 partial pressure) condition. On the other hand, S82551 and S39274 showed good corrosion resistance in the same condition. As for S82551, it suffered from localized corrosion at 1000ppm O2 (0.13 bar O2) condition. However, in the actual O2 concentrations, it is considered that S82551 and S39274 are suitable materials even if formation water flow back has occurred.

Available for download

Corrosion Resistance Of Stainless Steel Pipelines In Seawater During Pre-Comissioning Phase

Product Number: 51323-19137-SG

Author: Charles Leballeur, Tran Quang Tung, Nicolas Larché

Publication Date: 2023

$20.00

In Oil & Gas industries, Cr-Ni-Mo stainless steels and Ni-Cr-Mo alloys with Pitting Resistance Equivalent Number (PREN) lower than 40 could be selected for Rigid Production subsea risers, pipeline, and associated structure’s piping, according to a CO2/H2S corrosion assessment that considers all steady and transient conditions foreseen to operate the reservoir.

However, there are frequently some localized corrosion concerns for these materials during the installation and pre-commissioning of the line, when the internal surface of the line could be in contact temporarily with untreated seawater. These concerns systematically lead to discard the selection of these materials and to select, for conservative purpose, UNS N06625 that is admitted immune to localized corrosion in ambient seawater in international standard and operator’s specification, whatever the outcomes of the CO2/H2 corrosion assessment.

Available for download

Corrosion Resistance Of Stainless Steels And Nickel Alloys In Natural Seawater

Product Number: 51321-16515-SG

Author: Sandra Le Manchet/ Martin Monnot/ Emilie Robin

Publication Date: 2021

$20.00

Available for download

Corrosion Resistance of the Super-Austenitic Stainless Steel UNS S31266 for Geothermal Applications

Product Number: 51317--8825-SG

ISBN: 8825 2017 CP

Author: Ralph Baessler

Publication Date: 2017

$20.00

Update on recent experiences from laboratory tests performed at service conditions for geothermal applications. Incorporated in a catalogue of suitable materials for applications geothermal power plants. Users shall be enabled to have a basis for designing such facilities.

Available for download

Corrosion Risk Evaluation of Duplex Stainless Steel UNS S82551 in Treated Seawater Injection Well Service

Product Number: 51317--9608-SG

ISBN: 9608 2017 CP

Author: Perry Nice

Publication Date: 2017

$20.00

In seawater handling systems, better dissolved oxygen controls would permit the use of more cost effective materials such as duplex stainless steel UNS S82551. Corrosion testing of tubes joined together with a proprietary premium threaded connection was performed in controlled seawater loops simulating service conditions at 30°C.

Available for download

Crevice Corrosion Of High-Grade Stainless Steels In Seawaters, Comparison Between Temperate And Tropical Locations

Product Number: 51322-17828-SG

Author: Nicolas Larché, Charles Leballeur, Dominique Thierry, Erwan Diler

Publication Date: 2022

$20.00

In natural seawater, microorganisms can fix, grow and develop on practically any surface, including stainless steels.The term biofilm is generally used for communities of microorganisms embedded in an organic polymer matrix (e.g. exopolysaccharides), produced by the microorganisms themselves) and adhering to a surface, irrespective of the environment in which they develop. Stainless steels are widely used for different applications in seawater such as the oil and gas, desalination and marine energy industries. The presence of a biofilm on passive alloys such as stainless steels or nickel-based alloys can strongly enhance the cathodic reactions, and shift their open-circuit potential (OCP) to the noble direction.

Available for download

Crevice Corrosion Performance of High Grade Stainless Steels and Ni-Based Alloys in Natural And Treated Seawater

Product Number: 51316-7196-SG

ISBN: 7196 2016 CP

Author: Dominique Thierry

Publication Date: 2016

$20.00

To better understand and quantify the effect of crevice geometry, several crevice configurations simulating service conditions were evaluated including flanges assembled with gaskets, bolts mounted with nuts to plates, and the standard CREVCORR-type crevice formers.

Available for download

Crevice Crrosion of Copper as an Engineering Barrier of High-level Radioactive Waste Containers

Product Number: 51317--9162-SG

ISBN: 9162 2017 CP

Author: Maite Ochoa

Publication Date: 2017

$20.00

This work is aimed at determining the viability of oxygen-free copper as an engineering barrier of high-level radioactive waste containers.

Available for download

Determination Of Oxygen Limits For Corrosion Resistant Alloys (Cras) In Oil & Gas Produced Water Based On Electrochemical Test Methods – Part 2.

Product Number: 51322-17947-SG

Author: Marion Duparc, Roy Johnsen, Jan Ivar Skar, Tov Eivind Saxegaard

Publication Date: 2022

$20.00

Crevice corrosion is a geometrical-dependent type of localized attack that occurs in occluded regions where a stagnant and corrosive electrolyte is in contact with the surface of a passive metal^1,2. Crevices are present in all industrial designs and can lead to major failure since their detection is often challenging^3,4. Main strategies for the prevention and mitigation of crevice corrosion include design awareness and adequate materials selection⁵.

Available for download

Development of 27–7MO: An Improved Superaustenitic Stainless Steel With High Strength and Excellent Corrosion Resistance for Sour Service

Product Number: 04114-SG

Author: N.C. Eisinger, J.R. Crum, B. C. Puckett

Publication Date: 2004

$20.00

Material selection for downhole applications has become more difficult as the number of alloys continues to increase. On one hand, stainless steels like 316 offer a relatively low initial cost, but are not suited for many severe applications or environments. Other alloys, like MP35N, offer considerable strength and corrosion resistance, but with a much higher cost. Thus, an attempt has been made to create an alloy that spans the considerable gap between the 300 series of stainless steels and the nickel or cobalt base alloys. The resulting 6% Mo stainless steels offered increased strength and corrosion resistance without a drastic cost increase. The first generation of superaustenitics still falls considerably short of the strength and corrosion resistance provided by established nickel or cobalt-base alloys. In an attempt to further bridge the remaining gap, a new superaustenitic stainless steel has been developed that maintains the attractive cost of the 6% Mo alloys, but enhances both corrosion resistance and strength to open up environments that were too severe for 6% Mo alloys. The development of this alloy along with localized corrosion resistance, qualification testing, and mechanical testing are discussed.

Available for download

Distributed Sacrificial Cathodic Protection – A New Cost Effective Solution to Prevent Corrosion on Subsea Structures

Product Number: 51317--8941-SG

ISBN: 8941 2017 CP

Author: Roy Johnsen

Publication Date: 2017

$20.00

In this paper, a new concept named CP by distributed sacrificial anodes (DSA) is presented. The main principle of CP by DSA is to convert cathode area to anode area by distributing anode mass over the surface of the equipment to be protected.

Products tagged with 'crevice corrosion'

Association for Materials Protection and Performance