Details

Autor(en) / Beteiligte

• Ramírez-Arreola, D.E.
• Aranda-García, F.J.
• Sedano-de la Rosa, C.
• Vite-Torres, M.
• Gallardo-Hernández, E.A.
• Godínez-Salcedo, J.G.

Titel

Influence of swirl number and incidence angle on erosion-corrosion behavior of API 5L X-52 steel under swirling jets

Ist Teil von

• Wear, 2022-12, Vol.510-511, p.204518, Article 204518

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The effect of swirl velocity on erosion-corrosion damage was studied into the context of pipeline elbows and bends transporting slurries, focusing on swirl number and incidence angle. Tests were conducted on API X-52 steel coupons as target material and carried out at 5 m/s and four different swirling numbers 0, 0.1, 0.2, and 0.3. The corrosive slurry consisted of a brine solution with 2 g L−1 of NaCl and suspended aluminum oxide particles. The impinging angles employed were 30°, 45°, 60° and 90°. Corrosion rates were obtained from LPR measurements. Pitting corrosion and corrosion products were characterized by means of SEM/EDS techniques. The experimental results showed that the swirl intensity enhances the pit growing, and the angle of incidence is not a relevant factor on pitting corrosion behavior. The maximum corrosion rate was observed at high swirl intensities, making clear the severity of swirl conditions. •Swirl intensity accelerates the removal of corrosion products enhancing the pit growth.•Metal dissolution was the predominant metal degradation in erosion-corrosion process.•The maximum corrosion rate was observed at high swirl intensities.•Pitting nucleation was affected by the angle of incidence rather than the swirl intensity.•The incidence angle is not a determining factor that influences the depth behavior.