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2018 in Corrosion
William Keogh (University of Leeds), Gifty Oppong Boakye (University of Leeds), Anne Neville39
Estimated H-index: 39
(University of Leeds)
... more
Deposition of inorganic mineral scale on downhole completion equipment contributes to significant downtime and loss of production within the oil and gas industry. High temperature/high pressure (HT/HP) fields have reported build-up of lead sulfide (PbS) scale as a consequence of reservoir souring; and the resultant reaction between dissociated sulfide anions from hydrogen sulfide (H2S) and heavy metal cations. In this work, laboratory apparatus enabled simulation of scale precipitation under tur...
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2018 in Corrosion
Narasi Sridhar15
Estimated H-index: 15
Corrosion researchers have developed many approaches to predicting the occurrence of different corrosion modes. Four types of predictive analytics can be identified: data-centric correlative analysis, theory-based semi-empirical models, expert-knowledge-based models, and theory-based, multi-scale models. However, most new corrosion failures have been serendipitous discoveries, rather than anticipated through a systematic process. This paper reviews stress corrosion cracking (SCC) of carbon steel...
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2018 in Corrosion
Wilfred Binns1
Estimated H-index: 1
(University of Western Ontario),
Fareshta Zargarzadah1
Estimated H-index: 1
(University of Western Ontario),
Vahid Dehnavi5
Estimated H-index: 5
(University of Western Ontario)
... more
The role of MgH2 in the process of filiform-like corrosion on Mg alloys has been investigated. MgH2 was grown galvanostatically on the Mg ZEK100 alloy at a current density of -5 mA/cm2 for various times in 0.1 M NaOH and the subsequent electrochemical and corrosion behaviour compared to that of as-polished specimens. Polarization curves demonstrated cathodic activity under anodic polarization (i.e., the “negative difference effect”) while XRD confirmed the presence of MgH2. Dynamic SIMS meas...
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2018 in Corrosion
T. Dudziak7
Estimated H-index: 7
,
Magdalena Ziąbka
The aim of the paper was to investigate internal oxidation process under steam oxidation conditions and steam oxidation behaviour of two solid-solution strengthened alloys; UNS N06230, UNS N06617, two gamma - prime (i§â€™) strengthened UNS N07263 and UNS N07208. The samples have been tested under 1 bar pressure in 100% water – steam – water system in temperature range 700 - 800 oC for 3000 hours. The study has showed that Ni based solid-solution strengthened alloys; UNS N06230, UNS N06617 d...
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2018 in Corrosion
C.U. Chukwunonye (University of Louisiana at Lafayette), Nicholas J. Jones2
Estimated H-index: 2
(Naval Surface Warfare Center),
Gabriela Petculescu6
Estimated H-index: 6
(University of Louisiana at Lafayette)
Velocity and attenuation of shear and longitudinal sound waves were measured as a function of sensitization level in AA5083-H116 and AA5456-H116 aluminum alloys using two different techniques: resonant ultrasound spectroscopy (RUS) and pulse echo (PE). The frequency range for RUS was 0.3 MHz to 1 MHz. For PE, longitudinal 3.5 MHz and shear 1 MHz transducers were used. Sensitization was artificially induced in the laboratory by isothermally heating specimens at temperatures of 120°C, 175°C, 185°C...
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2018 in Corrosion
Kai Chen4
Estimated H-index: 4
(Shanghai Jiao Tong University),
Jiamei Wang1
Estimated H-index: 1
(Shanghai Jiao Tong University),
Donghai Du3
Estimated H-index: 3
(Shanghai Jiao Tong University)
... more
Stress corrosion crack (SCC) behavior of Type 310S stainless steel (SS) in supercritical water was evaluated at 400°C to 550°C. Crack growth rates (CGR) were obtained as a function of temperature and corrosion potential. Results show that Type 310S SS exhibits 100% intergranular SCC, and creep plays an important role in the overall growth rate. The SCC CGR increases with temperature between 400°C and 550°C, and is higher at a medium-low corrosion potential (argon deaerated water) than in water w...
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