EFFECT OF WELDING HEAT INPUT ON THE CORROSION RATE OF CARBON STEEL MMA WELDING

Melvin Bismark H Sitorus

Abstract


Abstract

Steel is one of materials which often used on steel construction, bridge construction, and high rise building construction. Construction using welding joint is expected able to withstand construction loads for a long time. After a while  weldment will be exposed to corrosion that will be construction failure in turn. One of the most important parameter in welding is heat input, however it hasn’t obtain correlation between heat input and corrosion rate on MMA (Manual Metal Arch) weldment  on mild steel. This paper aims to obtain correlation between heat input and corrosion rate of low carbon steel  with MMA welding. The result was show that  corrosion rate tend to decrease with adding of duration, where higher corrosion rate at heat input 0,8108 kJ/mm was 68,68 gm/m2 hr at duration  5 hour.


Keywords


welding current; corrosion rate; MMA welding; low carbon steel.

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References


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DOI: http://dx.doi.org/10.22441/ijimeam.v3i1.11667

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