Effect of deformation on damping capacity and microstructure of Fe-22%Mn-8%Co alloy

Young Seob Seo, Young Kook Lee, Chong Sool Choi

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Abstract

Effect of deformation on damping capacity and microstructure of Fe-22%Mn-8%Co alloy has been investigated. The γ → ε stress-induced martensitic transformation occurs during deformation in the alloy. The amount of ε martensite increases rapidly up to 5% deformation, and gradually increases with further deformation. The damping capacity of the alloy exhibits a maximum at around 5% deformation, and decreases with further deformation in spite of the increase in ε martensite content. The deterioration of damping capacity beyond 5% is ascribed to the dislocations introduced during deformation, which obstruct the movement of damping sources of the alloy.

Original languageEnglish
Pages (from-to)1274-1277
Number of pages4
JournalMaterials Transactions
Volume46
Issue number6
DOIs
Publication statusPublished - 2005 Jun 1

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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