Effect of chromium addition on damping capacity, mechanical property, and corrosion resistance of Fe-18%Mn alloy

Jung Chul Kim, Seung Han Baik, Joong Hwan Jun, Young Kook Lee

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Effect of Cr addition on damping capacity, mechanical property, and conosion resistance of Fe-18%Mn martensitic alloy has been studied. Maitensite start temperature (Ms) of the alloy decreases linearly from 150 to 25t°C with increasing Cr content up to 15%. The damping capacity decreases gradually from 27 to 23% in SDC with increasing Cr content from zero to 10%, and decreases rapidly with further Cr content. The tensile strength of the alloy maintains a level of 60 kg/mm2 regardless of Cr content with an elongation of 20 to 25%. Immersion test in 5% NaCl solution leads to the result that the corrosion resistance of the alloy becomes excellent above 10% Cr. From the above results, it is concluded that the optimum Cr content to improve the mechanical property and corrosion resistance of the alloy with a lesser decrease in damping capacity is about 10%.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalKey Engineering Materials
Publication statusPublished - 2006 Sep 14


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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