The influence of impingement angle on the erosion of ductile metals by angular abrasive particles

Finnie, I.; Stevick, G.R.; Ridgely, J.R.

doi:10.1016/0043-1648(92)90206-n

Cited by 130 publications

(48 citation statements)

References 10 publications

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“…No deÿnitive theory of erosion currently exists, however, a number of qualitative and quantitative models do exist. These are described in References [9,19,[40][41][42].…”

Section: The Erosion Modelmentioning

confidence: 99%

Solid-particle erosion in the tube end of the tube sheet of a shell-and-tube heat exchanger

Habib

Badr

Said

et al. 2006

Int. J. Numer. Meth. Fluids

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SUMMARYErosion is one of the major problems in many industrial processes, and in particular, in heat exchangers. The e ects of ow velocity and sand particle size on the rate of erosion in a typical shell-and-tube heat exchanger were investigated numerically using the Lagrangian particle-tracking method. Erosion and penetration rates were obtained for sand particles of diameters ranging from 10 to 500 m and for inlet ow velocities ranging from 0.197 to 2:95 m=s. A ow visualization experiment was conducted with the objective of verifying the accuracy of the continuous phase calculation procedure. Comparison with available experimental data of penetration rates was also conducted. These comparisons resulted in a good agreement. The results show that the location and number of eroded tubes depend mainly on the particle size and velocity magnitude at the header inlet. The rate of erosion depends exponentially on the velocity. The particle size shows negligible e ect on the erosion rate at high velocity values and the large-size particles show less erosion rates compared to the small-size particles at low values of inlet ow velocities. The results indicated that the erosion and penetration rates are insigniÿcant at the lower end of the velocity range. However, these rates were found to increase continuously with the increase of the inlet ow velocity for all particle sizes. The particle size creating the highest erosion rate was found to depend on the ow velocity range.

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“…No deÿnitive theory of erosion currently exists, however, a number of qualitative and quantitative models do exist. These are described in References [9,19,[40][41][42].…”

Section: The Erosion Modelmentioning

confidence: 99%

Solid-particle erosion in the tube end of the tube sheet of a shell-and-tube heat exchanger

Habib

Badr

Said

et al. 2006

Int. J. Numer. Meth. Fluids

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show abstract

“…This assumption was used in the present work. A number of mechanisms of base metal erosion have been proposed, the two most common are the cutting mechanism of Finnie 19;20;21;22 and the wear and deformation mechanism of Bitter 23;24. While Bitter's model of erosion is one of the most complete, the number of material dependent constants make it nearly impossible to use in most practical situations.…”

Section: Erosion Modelingmentioning

confidence: 99%

“…Finnie 19;20;21;22 attempted to model erosion rate by solving the equations of motion for a rigid particle striking a ductile surface. The resulting prediction for erosion of a volume, Q, removed by a particle of mass, rap, impacting with a velocity, Vp, at an impact angle, a, was:…”

Section: Erosion Modelingmentioning

confidence: 99%

Numerical Prediction of Erosion-Corrosion in Bends

Keating¹,

Nešić²

2001

CORROSION

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A combination of computational fluid dynamics (CFD) and Lagrangian particle tracking has been used to predict two-phase erosion-corrosion in a three-dimensional square-sectioned U-bend. A commercial CFD code has been used to predict fluid flow fields using the k-e turbulence model. These predictions have been verified against experimental results. Mass transfer controlled oxygen corrosion was calculated using species concentration fields. The Lam-Bremhorst low Reynolds number modification was used in near-wall regions to accurately resolve the diffusional controlled sublayer. A Lagrangian particle tracking algorithm coupled with the eddy interaction model has been developed and verified for turbulent particle dispersion. Erosion has been predicted from wall impact data through the use of an empirical erosion model. Erosion rates for sand particles are presented. The effect of Reynolds number and bend orientation on erosion rates was investigated. Finally predictions of two-phase erosion-corrosion are presented.

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“…Erosion is very much dependent on the impacting particle properties (density, hardness, size, and shape), target material, particle feed rate, temperature, impact angle, and velocity of abrasive particles [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. However, impact angle and particle velocity have been recognized as two parameters that remarkably influence erosion rates and surface degradation in tribo-systems.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Electrochemical Synergism of API X42 Pipeline Steel During Erosion–Corrosion

Islam

Farhat

2015

J Bio Tribo Corros

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Hydro-transportation is an economic and flexible way to transport natural resources such as oil and gas from excavation to the extraction plants, refineries, and consumer-ready products to markets. However, interaction between solid particles, corrosive fluid, and target material often results in significant mutual reinforcement due to the combined action of erosion and corrosion. In this study, erosion-corrosion behavior of API pipeline steel has been assessed in 2 g l -1 NaCl solution purged with CO 2 as the corrosive media and aluminum oxide as the erodent. Four different particle velocities (36, 47, 63, and 81 m s -1 ) were employed, while the angle of incidence was kept constant at 90°. The synergism between erosion and corrosion has been studied by means of a newly designed test approach to mitigate the limitations of the in situ method and to identify the effect of erosion on corrosion and vice versa. The corrosion process was monitored using potentiodynamic polarization and weight loss measurements. Total material loss rate and the components of erosion, corrosion, and their synergistic interactions have been determined. Scanning electron microscopy examination and experimental results show that there is an immense correlation between erosion and corrosion. Significant synergism was observed due to the interaction of different erosion and corrosion mechanisms.

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The influence of impingement angle on the erosion of ductile metals by angular abrasive particles

Cited by 130 publications

References 10 publications

Solid-particle erosion in the tube end of the tube sheet of a shell-and-tube heat exchanger

Solid-particle erosion in the tube end of the tube sheet of a shell-and-tube heat exchanger

Numerical Prediction of Erosion-Corrosion in Bends

Mechanical and Electrochemical Synergism of API X42 Pipeline Steel During Erosion–Corrosion

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