WORK-HARDENING AND RECOVERY RATES IN A Fe-3. 5 atMo ALLOY DURING HOT DEFORMATION.

Hideharu Nakashima, Hiroshi Nakagaki, Hiroaki Kurishita, Hideo Yoshinaga

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In order to clarify the high-temperature deformation mechanism in solution-hardened iron alloys, the work-hardening rate without dynamic restoring effect, h, and the softening rate without work-hardening effect, r, were measured by the stress-change test during creep of an Fe-3. 5at%Mo alloy in a temperature range 1,063-1,138 K and a stress range 5. 4-18. 8 MPa. It was found that the measured effective-stress for dragging the solute atmosphere around dislocations agreed well with that derived from the Cottrell-Jaswon theory and the measured internal-stress was described by the attractive-junction theory. From the changing rate of internal stress after the stress change, h and r were determined as a function of the internal stress and temperature. The parameters h and r are shown to be useful for the prediction of mechanical behavior along an arbitrary deformation path.

Original languageEnglish
Pages (from-to)395-401
Number of pages7
JournalTransactions of the Iron and Steel Institute of Japan
Volume27
Issue number6
DOIs
Publication statusPublished - Jan 1 1987

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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