Results 271 to 280 of about 44,303 (309)

Prediction of corrosion rates of a ship under the flow accelerated corrosion mechanism

Corrosion Reviews, 2021
Abstract In order to reveal the corrosion of a ship hull in flowing seawater, which is difficult to study under experimental conditions, a numerical method was adopted. Firstly, the numerical model of seawater flow field around the hull was established and computed, and the hydraulic characteristics of the flow field such as velocity,
Yingwei Liu, Haodian Liu
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Flow Accelerated Corrosion in Boilers/HRSGs

International Petroleum Technology Conference, 2015
Abstract Combined life cycle heat recovery steam generators (HRSG) play a vital role in energy efficiency, reducing green house effect. More than 40% of Heat Recovery Steam Generator (HRSG) tube failures are due to Flow Accelerated Corrosion (FAC).The FAC phenomenon occurs in carbon & low alloy steels, with poor chemical treatment ...
V Shashidhar, Debi Patnaik
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Chemo-Mechanical Effects of Flow on Corrosion

Corrosion, 1990
Basic processes, parameters, and mechanisms are discussed with special reference to hydrodynamics, mechanical actions of one- and two-phase flows, transport processes, electrochemical steps, and mechanical properties of the wall of the flow system. The terminology is clarified.
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Capillary flow viscometer for corrosive gases

Journal of Physics E: Scientific Instruments, 1988
The construction of a new capillary flow viscometer capable of measuring the viscosities of corrosive gases up to pressures of 0.1 MPa is reported. The theory and calibration of the apparatus is described, and the accuracy of the apparatus demonstrated by means of relative measurements of the viscosities of argon and carbon dioxide.
L Delauney, G P Matthews, A Townsend
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CORROSION OF MARTENSITIC STEELS IN FLOWING Pb17Li

1991
ABSTRACT Corrosion tests carried out in the CAMILLE loop at 475°C evidence that corrosion rate of martensitic steels is strongly dependent on Pb17Li velocity, suggesting that the rate limiting step is diffusion of dissolved elements in the laminar sub-layer.
J. Sannier, T. Flament, A. Terlain
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Effects of Multiphase Flow on Corrosion Inhibitor

CORROSION 1999, 1999
Abstract This paper investigates the inhibition performance of a typical imidazoline based inhibitor under multiphase flow. Electrochemical impedance spectroscopy (EIS) measurements were carried out in a 101.6 mm I.D., 15 m long acrylic flow loop using ASTM substitute saltwater and carbon dioxide gas.
Yue Chen, Huey J. Chen, W. Paul Jepson
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Effect of Slug Flow on CO2 Corrosion

AIP Conference Proceedings, 2010
Multiphase flow induced CO2 corrosion has resulted in serious losses in oil and gas production. In this paper, gas‐liquid two‐phase vertical upward slug flow has been analyzed from aspects containing flow structure, hydrodynamic characteristics, mass transfer characteristics and their effects on pipe wall and corrosion product film, and it is found ...
Y. B. Zhang, K. Yan, D. F. Che, Liejin Guo, D. D. Joseph, Y. Matsumoto, Y. Sommerfeld, Yueshe Wang   +7 more
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Corrosion Prediction under Flow Field

Key Engineering Materials, 2011
This study evaluates effects of the diffusion layer thickness and the share stress on metal surface for the polarization curve under flow field on metal corrosion. We measure the polarization curves under the different diffusion boundary layer thickness and the wall share stress.
Kazuhiro Suga, Taro Moteki, Masanori Kikuchi   +2 more
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What Are the Real Influences of Flow on Corrosion?

CORROSION 2006, 2006
Abstract The paper gives a brief overview of the fluid flow factors that influence internal corrosion of carbon steel. Following the overview, the special case of water dropout from oils in pipelines will be considered. Both model and testing options for qualifying or quantifying flow effects on dropout will be discussed.
Bernardus F.M. Pots, J.F. Hollenberg, E.L.J.A. Hendriksen   +2 more
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Marangoni flows and corrosion of refractory walls

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1998
Local corrosion of refractory at slaggas and slagmetal interfaces is caused by active motion of slag film formed by the wettability between the refractory and slag.
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