Mechanistically based prevention strategies of flow-induced corrosion

Heitz, Ewald

doi:10.1016/0013-4686(95)00336-3

Cited by 55 publications

(27 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For values between 1 and 3, there is a mixed control of mass transport and erosion-corrosion. [20][21] The dependence of the corrosion rate, measured in terms of i corr , on the Reynolds number is shown in Figure 3, where i corr was calculated from polarization curves by extrapolating the Tafel lines to E corr . From the least-squares fitting of the experimental data, the following correlation between i corr and the Reynolds number was obtained: …”

Section: Corrosion Current Density (I Corr )mentioning

confidence: 99%

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Pérez-Herranz¹,

Montañés²,

Garcı́a-Antón³

et al. 2001

CORROSION

View full text Add to dashboard Cite

A study was carried out to investigate the effect of hydrodynamic variables and exposure time on the corrosion of copper in a 4.6-M lithium bromide (LiBr) solution at room temperature using electrochemical techniques. The corrosion rate, measured in terms of the corrosion current density (i corr ), increased with the Reynolds number following a potential relation typical of processes controlled by the mass transport of the species formed in the dissolution process through the corrosion product film and the diffusion boundary layer, the effect of erosion caused by the particles of the corrosion product being negligible. In the range of the fluid velocities investigated, the corrosion potential (E corr ) shifted to more noble values, and the passivating current density decreased with the increase in fluid velocity as a result of the stabilization of the passive film formed. Over the exposure period, E corr and i corr increased sharply, reaching a maximum on the first days of exposition. After this time, E corr and i corr decreased, exhibiting slight fluctuations around a mean value.

show abstract

Section: Corrosion Current Density (I Corr )mentioning

confidence: 99%

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Pérez-Herranz¹,

Montañés²,

Garcı́a-Antón³

et al. 2001

CORROSION

View full text Add to dashboard Cite

show abstract

“…The material loss can, therefore, be caused by several mechanisms. These include chemical dissolution (which can be increased by mass transfer increases at the surface), mechanical erosion caused by fluid flow and/or impingement of particles on the pipe wall, and more complex processes where electrochemical corrosion can enhance erosion and vice versa [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Alleviation of erosion–corrosion damage by liquid–sand impact through use of chemicals

Wang

Neville

Ramachandran

et al. 2005

Wear

View full text Add to dashboard Cite

“…A general dependence of the corrosion rate on fluid velocity could be established in terms of a potential relation between the corrosion rate and the Reynolds number [48][49][50][51] : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 15 i corr = constant·Re a (5)…”

Section: Figures 4 and 6 Show That The Reynolds Number Does Not Have mentioning

confidence: 99%

“…Therefore, it can be concluded that there is a chemical step control of AISI 316L SS corrosion in pure and polluted H 3 PO 4 media [48,[50][51][52][53].…”

Section: Figures 4 and 6 Show That The Reynolds Number Does Not Have mentioning

confidence: 99%

Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology

Sánchez-Tovar

Montañés

Garcı́a-Antón

et al. 2012

Materials Chemistry and Physics

View full text Add to dashboard Cite

ElsevierSánchez Tovar, R.; Montañés Sanjuan, MT.; Garcia-Anton, J.; Abdellah; Guenbour, A. (2012). Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology. Materials Chemistry and Physics. 133(1):289-298. doi:10.1016/j.matchemphys.2012.01.024 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 AbstractThe cost associated with corrosion is an issue of major economic importance; controlling corrosion would promote the conservation of natural resources in relation to metals and save both energy and water. Phosphoric acid is mainly produced by the wet acid process, where corrosion problems could be intensified due to the presence of impurities in the phosphate rock. Operating temperatures and flowing conditions aggravate the aforementioned problems.This work studies the influence of temperature (25 to 60 ºC) and hydrodynamic conditions (Reynolds numbers from 1456 to 5066) on the corrosion of AISI 316L stainless steel in pure and polluted phosphoric acid solutions, by means of cyclic potentiodynamic polarization curves in a hydrodynamic circuit. The effect of temperature is the same as that caused by impurities; that is, higher corrosion rates and hindered passivation and repassivation resistance of the alloy. Statistical analysis by means of surface response methodology proved that the effect of temperature on the corrosion parameters of ASI 316L is more influential than the Reynolds number effect. The Reynolds number seems to have no significant 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 influence on the corrosion behaviour of stainless steel. Furthermore, the influence of temperature on the corrosion rate is much higher than on the rest of the corrosion parameters analysed, especially in polluted phosphoric acid solutions. AISI 316L stainless steel has a clear interest for the phosphoric acid industry as a component material of some equipment due to its good corrosion properties at the different temperatures and Reynolds numbers studied even in polluted media. *Manuscript Click here to view linked References

show abstract

Mechanistically based prevention strategies of flow-induced corrosion

Cited by 55 publications

References 15 publications

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Effect of Fluid Velocity and Exposure Time on Copper Corrosion in a Concentrated Lithium Bromide Solution

Alleviation of erosion–corrosion damage by liquid–sand impact through use of chemicals

Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology

Contact Info

Product

Resources

About