Effect of deformation temperature on tensile properties in a pre-cooled Fe-Mn-C austenitic steel

Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We investigated the tensile deformation behavior of a Fe-17Mn-0.3C (wt%) steel containing thermally-induced HCP-martensite that was formed by cooling to 77. K beforehand from various temperatures. In the temperature range where deformation-induced HCP→FCC reverse transformation and deformation twinning occur, the yield strength was enhanced by the pre-existing HCP-martensite, and the brittle cracking associated with the HCP-martensite was suppressed by the deformation-induced HCP→FCC reverse transformation after yielding. Additionally, the work hardening was sustained by deformation twinning. As a result, the yield and flow stresses were enhanced without any loss in elongation at the specific temperatures that were used in this study.

Original languageEnglish
Pages (from-to)331-336
Number of pages6
JournalMaterials Science and Engineering A
Volume556
DOIs
Publication statusPublished - Oct 30 2012
Externally publishedYes

Fingerprint

Austenitic steel
tensile properties
Tensile properties
Carbon steel
martensite
steels
Martensite
twinning
Twinning
Yield stress
tensile deformation
Temperature
temperature
work hardening
yield strength
elongation
Steel
Plastic flow
Strain hardening
Elongation

All Science Journal Classification (ASJC) codes

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

Cite this

Effect of deformation temperature on tensile properties in a pre-cooled Fe-Mn-C austenitic steel. / Koyama, Motomichi; Sawaguchi, Takahiro; Tsuzaki, Kaneaki.

In: Materials Science and Engineering A, Vol. 556, 30.10.2012, p. 331-336.

Research output: Contribution to journalArticle

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