Small-angle neutron scattering analysis of Mn-C clusters in high-manganese 18Mn-0.6C steel

Mihyun Kang, Eunjoo Shin, Wanchuck Woo, Young Kook Lee

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Abstract

Nanometer-scale particles (Mn-C clusters) were analyzed quantitatively using small-angle neutron scattering in 18Mn-0.6C (wt.%) austenite high-manganese steel. The size, number, and volume fraction of the particles were determined as a function of strain (0, 5, 15, 30, 45, 50%) at different temperatures (25 and 100 °C). The diameter of the cluster ranges from 2 to 14 nm in the matrix. The total volume fraction of the cluster significantly increases from 2.7 × 10- 6 to 8.7 × 10- 6 as the strain increases. Such clustering phenomenon is correlated to the serration behavior under loading in high-manganese steels.

Original languageEnglish
Pages (from-to)40-45
Number of pages6
JournalMaterials Characterization
Volume96
DOIs
Publication statusPublished - 2014 Oct

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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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