eprintid: 13188 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/31/88 datestamp: 2023-11-10 03:27:45 lastmod: 2023-11-10 03:27:45 status_changed: 2023-11-10 01:50:33 type: article metadata_visibility: show creators_name: Khan, R. creators_name: Ya, H.H. creators_name: Pao, W. creators_name: Abdullah, M.Z.B. creators_name: Dzubir, F.A. title: Influence of sand fines transport velocity on erosion-corrosion phenomena of carbon steel 90-degree elbow ispublished: pub note: cited By 9 abstract: Erosion-corrosion is an ineluctable flow assurance problem confronted in hydrocarbon transportation and production systems. In this work, the effect of sand fines velocity on the erosion-corrosion behavior of AISI 1018 carbon steel long radius 90° elbows was experimentally and numerically investigated for liquid-solid flow conditions. Experiments were effectuated for sand fines of mean diameter 50 µm circulated in a flow loop with three different velocities (0.5, 1 and 2 m/s). To elucidate the erosion-corrosion mechanism and degradation rate, the material loss analysis, multilayer paint modeling (MPM) and microscopic imaging technique were employed, with computational fluid dynamics (CFD) and discrete phase modeling (DPM) also capacitating to evaluate the erosion distribution. It was perceived that increasing slurry velocity significantly changes the particle-wall impaction mechanism, leading to an increase in material degradation in the elbow bottom section up to 2 times in comparison to the low transport velocity. The erosion scars and pits development at the elbows internal surface was found to govern the wear mechanism in the carbon steel and made downstream section susceptible to erosion and corrosion. The material removal mechanisms were ascertained to change from cutting to pitting and plastic deformation with an increase of sand fines transportation velocity from 0.5 m/s to 2 m/s. © 2020 by the authors. date: 2020 publisher: MDPI AG official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85085093503&doi=10.3390%2fmet10050626&partnerID=40&md5=cc381406263fae6fcd1075b3610b1cac id_number: 10.3390/met10050626 full_text_status: none publication: Metals volume: 10 number: 5 refereed: TRUE issn: 20754701 citation: Khan, R. and Ya, H.H. and Pao, W. and Abdullah, M.Z.B. and Dzubir, F.A. (2020) Influence of sand fines transport velocity on erosion-corrosion phenomena of carbon steel 90-degree elbow. Metals, 10 (5). ISSN 20754701