A　3-dimensional　finite　element　model　was　built　to　determine　the　effect　of　inclination　angle　of　a　corrosion　defect　on　local　mechano-electrochemical　(M-E)　effect　in　a　simulated　soil　solution.　Because　of　the　high　effect　of　the　defect　inclination　angle　on　the　M-E　effect,　when　the　inclination　angle　is　0　degrees　(i.e.,　the　primary　axis　of　the　defect　parallel　to　the　longitudinal　direction　of　the　pipe),　the　greatest　stress　concentration　level　at　the　defect　can　be　observed,　which　is　associated　with　the　lowest　corrosion　potential,　the　greatest　anodic　current　density　and　the　most　serious　accelerated　localized　corrosion.　When　the　inclination　angle　is　90　degrees,　the　stress　concentration　level　reduces　and　the　corrosion　potential　becomes　less　negative,　accompanying　with　the　decreased　anodic/cathodic　current　densities.　Besides,　when　the　ratio　(r(ca))　of　the　primary　axial　length　of　the　defect　to　its　secondary　axial　length　is　1,　the　defect　inclination　does　not　affect　the　stress　and　the　electrochemical　corrosion　rate　at　the　defect.　With　the　increase　of　r(ca),　the　effect　of　the　defect　inclination　angle　is　more　apparent.　(C)　2021　The　Authors.　Publishing　services　by　Elsevier　B.V.　on　behalf　of　KeAi　Communications　Co.　Ltd.