A　finite　element　model　was　built　to　assess　the　combined　effects　of　internal　pressure　and　axial　applied　stress(σA)　on　localized　stress　concentration　and　electrochemical　corrosion　at　defects　on　pipelines　under　the　mechano-electrochemical　(M-E)　interaction.　When　defect　angle　α　(i.e.,　included　angle　between　the　major　axis　of　the　defect　and　longitudinal　direction　of　the　pipe)　is　90°,　the　maximum　stress　of　the　defect　is　enlarged　remarkably　with　the　increase　in　σA,　leading　to　electrochemical　corrosion　at　the　defect　affected　greatly　under　the　M-E　interaction.　However,　when　α　is　0°,　the　maximum　stress　and　electrochemical　corrosion　are　affected　slightly　by　the　σA.　Besides,　when　the　hoop　stress　of　the　pipe　is　larger　than　its　total　axial　stress,　the　largest　corrosion　rate　at　the　defect　with　α　of　0°　would　be　higher　than　that　at　the　defect　with　α　of　90°.　Thus,　for　the　improvement　of　pipeline　integrity　management,　the　combined　effects　of　internal　pressure　and　σA　should　be　taken　into　account　for　a　more　accurate　prediction　of　local　corrosion　rate　at　the　defect　especially　with　α　of　90°.　©　2021,　The　Brazilian　Society　of　Mechanical　Sciences　and　Engineering.