Effect of Microstructure on the Low-Cycle Fatigue Properties of a Fe–15Mn–10Cr–8Ni–4Si Austenitic Alloy

  • Ilya Nikulin
  • Takahiro SawaguchiEmail author
  • Yuuji Kimura
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


In the present study, the effect of the initial austenitic structure on the low-cycle fatigue (LCF) properties and ε-martensitic transformation (ε-MT) was studied in the Fe–15Mn–10Cr–8Ni–4Si seismic damping alloy under an axial strain control mode with total strain amplitude, Δεt/2, of 0.01. The microstructures with various grain size and texture conditions were produced by warm rolling followed by annealing at temperatures that ranged from 600 to 900 °C. It was found that the increase in the austenitic grain size observed in the studied temperature interval generally does not affect martensitic transformation and the LCF resistance of the studied alloy. However, strong texture and substructure remaining in the alloy after low temperature annealing at T ≤ 700 °C inhibit strain-induced phase transformation and reduce fatigue resistance of the studied alloy. As a result, the alloy annealed at T ≥ 800 °C shows higher fatigue resistance than that one annealed at T ≤ 700 °C.


High-Mn steels Low-cycle fatigue Microstructure 



The authors are grateful to the Materials Manufacturing and Engineering Station, NIMS, for materials processing.


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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • Ilya Nikulin
    • 1
  • Takahiro Sawaguchi
    • 1
    Email author
  • Yuuji Kimura
    • 1
  1. 1.National Institute for Materials ScienceTsukubaJapan

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