%0 Journal Article %A Khan, R. %A Mourad, A.-H.I. %A Seikh, A.H. %A Petru, J. %A H.Ya, H. %D 2023 %F scholars:18101 %J Engineering Failure Analysis %K Computational fluid dynamics; Erosion; Liquefied gases; Low carbon steel; Morphology; Surface roughness, Annular flows; CFD simulations; Elbow; Excessive pitting; Experimental fluids; Flow condition; Gas sands; Microcuttings; Pittings; Quantitative result, Surface morphology %R 10.1016/j.engfailanal.2023.107565 %T Erosion impact on mild steel elbow pipeline for different orientations under liquid-gas-sand annular flow %U https://khub.utp.edu.my/scholars/18101/ %V 153 %X In this paper, the quantitative results of erosion of a horizontal-vertical (H-V) downward long radius 90° elbow and horizontal-horizontal (H-H) elbow for abrasive annular flow conditions is evaluated using experimental and Computational Fluid Dynamics. Experimental results indicate that the critical erosion eventuates when the angle reaches approximately 45°, which is perceived in both H-V and H-H orientation. The excessive pitting and microcutting are the main causes of erosive wear for both oriented elbows after the abrasive particle collision. Meanwhile, the 1018 steel H-H exhibited the lowest thickness loss, surface roughness, hardness, and mass loss in comparison with H-V oriented elbow. The corresponding erosion rate of the H-V elbow was comparatively 21 higher than 90° H-H elbows for identical annular flow conditions. © 2023 Elsevier Ltd %Z cited By 7