Formation of an (α+θ) microduplex structure without thermomechanical processing in superplastic ultrahigh carbon steels

K. Tsuzaki, E. Sato, S. Furimoto, T. Furuhara, T. Maki

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

The effects of alloying elements and heat treatments on the formation of microduplex structure in ultrahigh carbon steels were investigated. A fully pearlitic structure without coarse pro-eutectoid θ particles was obtained by the addition of 2 mass% Al. The microduplex structure consisted of fine grained α matrix with a grain size of 0.7 μm. The structure exhibited superplasticity, elongation of 490%, and a maximum flow stress of 35 MPa at 973 K and at an initial strain rate of 5×10-4/s.

Original languageEnglish
Pages (from-to)675-681
Number of pages7
JournalScripta Materialia
Volume40
Issue number6
DOIs
Publication statusPublished - Feb 19 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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