Enhancement of hydrogen embrittlement resistance of Fe-Mn-C twinning-induced plasticity steel by partial recrystallization technique

Tak Min Park, Min Tae Kim, Kyeong Ho Baik, Motomichi Koyama, Jeongho Han

Research output: Contribution to journalArticle

Abstract

We suggest that the partial recrystallization is a novel pathway to increase the hydrogen embrittlement resistance of Fe-Mn-C twinning-induced plasticity steels. The Fe-18Mn-0.6C (wt%) cold-rolled steel was annealed for from 3 min to 30 min at 650 °C. When the annealing time was shorter than 5 min, the specimen was partially recrystallized, while when the annealing time exceeded 10 min, the matrix was almost fully recrystallized. The partially recrystallized specimens exhibited the improved hydrogen embrittlement resistance because the inherited dislocation and mechanical twins in unrecrytallized grains acted as a trap site for diffusible hydrogen.

Original languageEnglish
Pages (from-to)221-226
Number of pages6
JournalMaterials Characterization
Volume151
DOIs
Publication statusPublished - May 1 2019

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hydrogen embrittlement
Hydrogen embrittlement
Steel
Twinning
twinning
plastic properties
Plasticity
Crystallization
steels
Annealing
annealing
augmentation
Hydrogen
traps
hydrogen
matrices

All Science Journal Classification (ASJC) codes

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

Cite this

Enhancement of hydrogen embrittlement resistance of Fe-Mn-C twinning-induced plasticity steel by partial recrystallization technique. / Park, Tak Min; Kim, Min Tae; Baik, Kyeong Ho; Koyama, Motomichi; Han, Jeongho.

In: Materials Characterization, Vol. 151, 01.05.2019, p. 221-226.

Research output: Contribution to journalArticle

Park, Tak Min ; Kim, Min Tae ; Baik, Kyeong Ho ; Koyama, Motomichi ; Han, Jeongho. / Enhancement of hydrogen embrittlement resistance of Fe-Mn-C twinning-induced plasticity steel by partial recrystallization technique. In: Materials Characterization. 2019 ; Vol. 151. pp. 221-226.
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