Unraveling the origin of strain-induced precipitation of M 23C6 in the plastically deformed 347 Austenite stainless steel

Sung Min Hong, Myung Yeun Kim, Dong Joon Min, Kyu Ho Lee, Jae Hyeok Shim, Dong Ik Kim, Jin Yoo Suh, Woo Sang Jung, In Suk Choi

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Abstract

In this research, the phenomenon of strain-induced precipitation of M 23 (M = Cr, Fe, Mo) C6 precipitates in 347 austenite stainless steel was systematically studied. During annealing at 650 °C, the experimental results exhibited significantly earlier formation of M 23C6 precipitates in the plastically strained specimen, than in the no-strain specimen. The various microstructural characterizations showed that the accelerated formation of M23C6 precipitates occurred around deformation bands that were generated by deformation twinning. Extensive investigation suggested that the strain-induced precipitation of M23C6 is attributed to the formation of strain-induced α′ martensite during plastic deformation near deformation bands.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalMaterials Characterization
Volume94
DOIs
Publication statusPublished - 2014 Aug

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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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