Influence of processing regimes on fine-grained microstructure development in an AlMgSc alloy by hot equal-channel angular pressing

Oleg Sitdikov, Elena Avtokratova, Rita Babicheva, Taku Sakai, Kaneaki Tsuzaki, Yoshimi Watanabe

Research output: Contribution to journalReview article

16 Citations (Scopus)

Abstract

Grain refinement during equal-channel angular pressing (ECAP) was studied in a commercial Al5.8% Mg0.3% Sc alloy at temperatures from 473 to 723K (̃0.50.8T m). The samples were quenched in water in every ECAP pass, which is a conventional cyclic process. ECAP to ε = 12 resulted in ultrafine-grained structures developed uniformly at high strains at 473 and 723 K, while processing at 573K led to the evolution of a duplex grain structure containing partially much coarser grains. In contrast, ECAP process continuously carried out to ε = 12 without interruption at 573 K, resulted in development of a uniform ultrafine-grained structure. Effects of processing regimes on microstructural evolution in the AlMgSc alloy are discussed.

Original languageEnglish
Pages (from-to)56-62
Number of pages7
JournalMaterials Transactions
Volume53
Issue number1
DOIs
Publication statusPublished - Mar 21 2012

Fingerprint

Equal channel angular pressing
Hot pressing
pressing
microstructure
Microstructure
Processing
Grain refinement
Crystal microstructure
Microstructural evolution
interruption
Water
water
Temperature
temperature
Ultrafine

All Science Journal Classification (ASJC) codes

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

Cite this

Influence of processing regimes on fine-grained microstructure development in an AlMgSc alloy by hot equal-channel angular pressing. / Sitdikov, Oleg; Avtokratova, Elena; Babicheva, Rita; Sakai, Taku; Tsuzaki, Kaneaki; Watanabe, Yoshimi.

In: Materials Transactions, Vol. 53, No. 1, 21.03.2012, p. 56-62.

Research output: Contribution to journalReview article

Sitdikov, Oleg ; Avtokratova, Elena ; Babicheva, Rita ; Sakai, Taku ; Tsuzaki, Kaneaki ; Watanabe, Yoshimi. / Influence of processing regimes on fine-grained microstructure development in an AlMgSc alloy by hot equal-channel angular pressing. In: Materials Transactions. 2012 ; Vol. 53, No. 1. pp. 56-62.
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