Factors affecting static strain aging under stress at room temperature in a Fe-Mn-C twinning-induced plasticity steel

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

Abstract

We investigated the factors affecting static strain aging under stress in a Fe-22Mn-0.6C twinning-induced plasticity steel at room temperature. The magnitude of strengthening by the static strain aging was estimated by tensile strain holding and subsequent re-loading. Strain holding time, pre-strain, strain rate, external stress, and diffusible hydrogen content were varied to clarify their effects on static strain aging, and the present static strain aging was found to be affected by all of these factors. In this paper, we show the phenomenological laws of the relationship among the factors and the stress increase due to the static strain aging.

Original languageEnglish
Pages (from-to)1123-1131
Number of pages9
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume100
Issue number9
DOIs
Publication statusPublished - Jan 1 2014

Fingerprint

precipitation hardening
Steel
Twinning
twinning
plastic properties
Plasticity
Aging of materials
steels
room temperature
Temperature
strain rate
Tensile strain
Strain rate
Hydrogen
hydrogen

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Factors affecting static strain aging under stress at room temperature in a Fe-Mn-C twinning-induced plasticity steel. / Koyama, Motomichi; Akiyama, Eiji; Tsuzaki, Kaneaki.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 100, No. 9, 01.01.2014, p. 1123-1131.

Research output: Contribution to journalArticle

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