Microstructure development by thermomechanical processing in duplex stainless steel

T. Maki, T. Furuhara, K. Tsuzaki

Research output: Contribution to journalReview articlepeer-review

84 Citations (Scopus)


In the case of two-phase alloys, a refinement matrix phase and a uniform distribution of second phase are important to improve mechanical properties. In this paper, microstructure change of α (ferrite)+γ (austenite) two-phase structure, especially microduplex structure consisting of α and γ in a fine-grained form (1-3μm), in the duplex stainless steel by various thermomechanical processings and heat treatments is briefly reviewed. Main topics are as follows, 1) formation process of fine-grained α+γ structure (microduplex structure) by various thermomechanical processings, 2) nature of microduplex structure and its stability during prolonged aging, 3) microstructure change of microduplex structure by annealing after heavy cold rolling and 4) microstructure change of microduplex structure during superplastic deformation.

Original languageEnglish
Pages (from-to)571-579
Number of pages9
JournalIsij International
Issue number6
Publication statusPublished - 2001
Externally publishedYes


  • Duplex stainless steel
  • Fine-grained structure
  • Microduplex structure
  • Recovery and recrystallization of ferrite
  • Superplasticity
  • Thermomechanical processing

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Microstructure development by thermomechanical processing in duplex stainless steel'. Together they form a unique fingerprint.

Cite this