The influence of deformation twinning on yield strength in cold-rolled FCC ferrous alloy

Translated title of the contribution: The influence of deformation twinning on yield strength in cold-rolled FCC ferrous alloy

Tatsuya Morikawa, Taku Moronaga, Kenji Higashida

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of a fine lamellar structure due to deformation twin on the yield strength of fee ferrous alloys has been investigated by using cold-rolled Fe-36mass%Ni alloy and 310S stainless steels. Microstructural evolution during cold-rolling of both alloys has been also examined by using transmission electron microscopy. In cold-rolled Fe-36mass%Ni alloy, a kind of layered cell structure was observed, but no deformation twin was found. On the other hand, in a 310S steel, a fine lamellar structure of twin-matrix (T-M) was markedly developed with cold-rolling. The cold-rolled 310S steels exhibited yield strengths about 2 times higher than those of the rolled Fe-Ni alloys in spite that the yield strength of as-annealed 310S is lower than that of as-annealed Fe-Ni alloy. This indicates that the occurrence of fine T-M lamellae during cold-rolling enhances the evolution of fine-grained structure, which causes the marked increase in the yield strength of the rolled specimens.

Original languageJapanese
Pages (from-to)834-838
Number of pages5
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume91
Issue number11
DOIs
Publication statusPublished - Jan 1 2005

Fingerprint

Iron alloys
Twinning
yield strength
twinning
Yield stress
Cold rolling
cold rolling
Lamellar structures
Steel
fine structure
steels
Stainless Steel
Microstructural evolution
lamella
matrices
Stainless steel
stainless steels
Transmission electron microscopy
occurrences
transmission electron microscopy

All Science Journal Classification (ASJC) codes

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

Cite this

The influence of deformation twinning on yield strength in cold-rolled FCC ferrous alloy. / Morikawa, Tatsuya; Moronaga, Taku; Higashida, Kenji.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 91, No. 11, 01.01.2005, p. 834-838.

Research output: Contribution to journalArticle

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