Ramadhan, D., Pratesa, Y. and Mudaryoto, J.W. 2026. Failure Analysis of Economizer Tube Leakage Caused by Localized Internal Corrosion at Weld-Root Regions . Recent in Engineering Science and Technology. 4, 3 (Jul. 2026), 139–154. DOI:https://doi.org/10.59511/riestech.v4i3.163.