AMPP Store - Products tagged with 'pitting'

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51318-11059- Review of a UNS N04400 Heat Exchanger Tube Failure in Cooling Water Service

Product Number: 51318-11059-SG

Author: Mel Esmacher / Kumar Kembaiyan / Tony Navarrete / Andrew Rentsch

Publication Date: 2018

$20.00

A polyethylene unit experienced a gas leak within a high pressure tube and shell heat exchanger. Failure analysis revealed that the tube wall loss was beneath residual deposits. Preventative measures and improvements in inspection & cleaning procedures are discussed.

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51318-11074-Effect of Elastic and Plastic Strain on General Corrosion and Metastable Pitting of Steels

Product Number: 51318-11074-SG

Author: Gaoxiang Wu / Preet M. Singh

Publication Date: 2018

$20.00

The influence of elastic strain on general corrosion and metastable pitting is investigated for steels through in-situ test setup. Results from electrochemical tests on specimens with different amounts of in-situ elastic strain.

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51318-11084-The Application Limitation Boundary of Duplex Stainless Steel under Sour Condition in Oil Fields

Product Number: 51318-11084-SG

Author: Ziru Zhang / Zhu Wang / Junpeng Xue / Lei Zhang / Xian Tang / Minxu Lu

Publication Date: 2018

$20.00

Pitting failure boundary of duplex stainless steel under sour condition was investigated by electrochemical and immersion tests. Polarization measurements investigate the effect of temperature and H2S on the corrosion behavior.

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51318-11116-Anodic and chemical oxidation to improve localized corrosion resistance of pure titanium

Product Number: 51318-11116-SG

Author: Davide Prando / Fabio Bolzoni / Davide Nicolis / MariaPia Pedeferri / Marco Ormellese

Publication Date: 2018

$20.00

Corrosion behavior of commercially pure titanium (UNS R50400, ASTM GRADE 2) was investigated in presence of aggressive, bromides containing solution reported to cause more severe localized corrosion compared to chlorides.

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51318-11185-Case Studies of Amine Sweetening Corrosion Incidents

Product Number: 51318-11185-SG

Author: Eric Teletzke / James Daughtry

Publication Date: 2018

$20.00

Five case studies of corrosion related failures in alkanolamine acid gas removal systems including the following types of corrosion: Uniform, Pitting, Chloride Induced Crevice, Cavitation, and Microbiologically Induced Corrosion (MIC).

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51318-11257-Sulfide Stress Cracking of Super 13Cr Martensitic Stainless Steel – Localized Corrosion and Hydrogen

Product Number: 51318-11257-SG

Author: Brian D. Chambers / Manuel Gonzalez / Yue Chen / Marc Wilms

Publication Date: 2018

$20.00

This paper provides an overview of the existing literature with regards to the understanding of cracking in molybdenum-containing 13Cr alloys and provides suggested paths of investigation.

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51318-11382-Determination of Precursor Sites for Pitting Corrosion of UNS N07718 in Cl-Environments – Part 1. Experimental Setup

Product Number: 51318-11382-SG

Author: Louis F. Garfias / S. R. Taylor / Helmuth Sarmiento Klapper / Jutta Klöwer / Julia Botinha / Luis F. Garfias-Mesias

Publication Date: 2018

$20.00

Simultaneous in-situ micro-visualization and electrochemical testing was done on small electrodes from UNS N07718 immersed in artificial seawater at room temperature.

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51318-11387-Determination of Precursor Sites for Pitting Corrosion of UNS N07718 in Cl-Environments – Part 2. Experimental Results

Product Number: 51318-11387-SG

Author: Luis F. Garfias-Mesias / Helmuth Sarmiento Klapper / Jutta Klöwer / Julia Botinha

Publication Date: 2018

$20.00

Electrochemical testing and in-situ microscopy using a mini-autoclave has been used to determine the precursor sites for pitting corrosion of UNS N07718 at high temperatures in chloride containing environments.

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A highly-corrosive sulfate reducing bacterium as a model microbe to improve MIC investigations

Product Number: 51323-18912-SG

Author: Lingjun Xu, Sith Kumseranee, Suchada Punpruk, Pruch Kijkla, Adnan Khan, Tingyue Gu

Publication Date: 2023

$20.00

MIC is a major problem in many industrial sectors, especially in the oil and gas industry. It is widely believed that almost 20% of all corrosion costs can be attributed to MIC. The shale gas and oil industry suffers from mostly MIC rather conventional abiotic CO2/H2S corrosion. Very severe MIC with fast failures are seen in field operations with very harsh operating conditions such as high salinity and nutrient-rich water, including treated municipal wastewater that promotes microbial growth. In some situations, titanium and plastic pipes are used to cope with MIC.

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A Parametric Evaluation of Well Construction Corrosion-Resistant Alloys for Geological Carbon Sequestration

Product Number: 51324-20582-SG

Author: Manuel Marya

Publication Date: 2024

$40.00

A parametric test program involving completion alloys in supercritical CO2 was conducted using both isothermal and non-isothermal cycles in the presence of contaminants (i.e., H2O, NO2, SO2, H2S, H2) above typical impurity limits for carbon capture and sequestration (CCS). The isothermal testing consisted of 4500 psi (310 bar) autoclave tests at 175°F (79°C) with the test materials in supercritical CO2, and optionally, in a NaCl-rich brine in equilibrium; the non-isothermal testing was similar, but included three consecutive cycles with 250°F (121°C) and 70°F (21°C) exposures. Up to ten corrosion-resistant alloys [i.e., 9Cr (UNS K90941), 13Cr (UNS S42000), S13Cr (ISO13680 (1) Type 13-5-2), 15Cr (proprietary), 17Cr (proprietary, 22Cr (UNS S32205), 25Cr (UNS S32750), G3 (UNS N06985), 925 (UNS N09925), 718 (UNS N07718), and 716 (UNS N07716)] were tested for weight loss, pitting, and crevice corrosion. The alloys, known to be more susceptible to environmentally-assisted cracking (EAC), were also evaluated for cracking with ppm-levels impurities (25-to-150 ppmv each), including hydrogen sulfide (H2S). Alloys 22Cr, 25Cr, and API (2) Spec. 6A and Std. 5CRA nickel-based alloys are generally found to be fit-for-service for subsurface CCS. In contrast, the alloys with 9-to-17 wt.% chromium tend to suffer from pitting, which when extensive, has been associated with a case of EAC. For the pitting-resistant alloys under test, neither EAC nor crevice corrosion created major new risks. The introduction of non-isothermal cycles to qualify alloys for CCS has successfully emphasized the dominant effects of condensates, otherwise under-represented, and is suggested for future material testing and qualification programs.

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A Review of Corrosion-Related Failures and Preventive Measures on Non-Magnetic Cr-Mn Austenitic Stainless Steel Drill Collars

Product Number: 51323-19370-SG

Author: Flavia Kudla, Yao Yao, Manuel Marya

Publication Date: 2023

$20.00

Drill collars are thick-walled pipes that provide stiffness and concentration of mass at or near the bit and are among the main components of the bottom-hole assembly (BHA). The non-magnetic drill collars (NMDCs) represent a sub-category of proprietary drill collars that enable magnetic surveying and directional drilling. Due to their cross-section, NMDCs are inherently heavy and can convey a strong push on the drill bit itself, minimizing cutting instability problems, while their strength is sufficient to prevent buckling while drilling.

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AA5083 and AA6082 Exposed to Seawater – Effect of Temperature and Potential on Corrosion Behaviour

Product Number: 51317--8942-SG

ISBN: 8942 2017 CP

Author: Roy Johnsen

Publication Date: 2017

$20.00

This paper presents and discusses results from testing of AA5083 and AA6082 in natural seawater at 100C. Samples exposed up to 6500 hours under different condition including polarization to -1500 mV vs. Ag/AgCl, - 1050 mV vs. Ag/AgCl and -700 mV Ag/AgCl.

Products tagged with 'pitting'

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