Trading off between dynamic strain aging and substructure evolution in κ-carbide-free lightweight steel at room temperature

H. R. Abedi, A. Zarei Hanzaki, N. Nemati, Dae Eun Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The previous proposed models to describe the room temperature dynamic strain aging of twinning-induced-plasticity steels appear to be theoretically invalid in the case of lightweight grades. The proposed theory in the present work accentuates the high capability of the experimented dilute solid solution in progressive formation and refinement of the cell structures. The higher dislocation population in the cell-walls in comparison to that of cell-interiors is viable enough to increase the stress assisted drift and stimulate the sub-boundaries preferred sites to accommodate the solutes. The short-range dislocation core diffusion enables the cell-walls to assist the strain aging to occur.

Original languageEnglish
Pages (from-to)110-114
Number of pages5
JournalScripta Materialia
Volume157
DOIs
Publication statusPublished - 2018 Dec

All Science Journal Classification (ASJC) codes

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

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