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

doi:10.2320/matertrans.MD201108

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

Strength of materials

Research output: Contribution to journal › Review article › peer-review

17 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 language	English
Pages (from-to)	56-62
Number of pages	7
Journal	Materials Transactions
Volume	53
Issue number	1
DOIs	https://doi.org/10.2320/matertrans.MD201108
Publication status	Published - 2012

All Science Journal Classification (ASJC) codes

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

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

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.",

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T1 - Influence of processing regimes on fine-grained microstructure development in an AlMgSc alloy by hot equal-channel angular pressing

AU - Sitdikov, Oleg

AU - Avtokratova, Elena

AU - Babicheva, Rita

AU - Sakai, Taku

AU - Tsuzaki, Kaneaki

AU - Watanabe, Yoshimi

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

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

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