Orientation dependence of quasi-three-stage work hardening in high purity iron single crystals

J. Kumagai, S. Takaki, S. Suzuki, H. Kimura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Quasi-three-stage hardening is characterized with the existence of stage 0, and the temperature dependence of the length of stage I, which is opposite to that in the three-stage hardening in f.c.c. metals. The orientation dependence of these characteristics has been investigated for high purity iron single crystals. As the initial orientation of the specimen axis moves away from the [001]-[011] symmetry line, stage 0 becomes smaller and stage I becomes longer. As it approaches the [011]-[111] boundary, stage 0 becomes smaller and stage I becomes shorter. These results are interpreted using the mechanism of the quasi-three-stage hardening proposed by us recently and consideration of the slip plane dependence of the direction of the motion of screw dislocations in the primary and secondary slip systems.

Original languageEnglish
Pages (from-to)207-215
Number of pages9
JournalMaterials Science and Engineering A
Volume129
Issue number2
DOIs
Publication statusPublished - 1990 Nov 1

ASJC Scopus subject areas

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

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