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      Hydrogen failure sensitivity of A516-Gr70 and API 5L-X70 steels in sour environments

      , Article Anti-Corrosion Methods and Materials ; Volume 62, Issue 5 , 2015 , Pages 294-300 ; 00035599 (ISSN) Taheri, H ; Dolati, A ; Beidokhti, B ; Sharif University of Technology
      Emerald Group Publishing Ltd  2015
      Abstract
      Purpose – This paper aims to clarify the corrosion behavior of two famous structural steels in sour environment. These steels have a vast application in oil and gas industries. The study aims to find the effect of different concentrations of sour solution on the origin of crack in these steels. Design/methodology/approach – After preparation of specimens, different sour solutions were made using the synthetic brine (according to National Association of Corrosion Engineers [NACE], Technical Committee Report 1D182) and various amounts of Na2S.9H2O and CH3COOH. The polarization test was done by Potansiostat apparatus model Zahner-IM6 at two temperatures, 25°C... 
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