Formation of bimodal grain structures in high purity Al by reversal high pressure torsion

Dmitry Orlov; Yoshikazu Todaka; Minoru Umemoto; Nobuhiro Tsuji

doi:10.1016/j.scriptamat.2010.11.020

Formation of bimodal grain structures in high purity Al by reversal high pressure torsion

Dmitry Orlov, Yoshikazu Todaka, Minoru Umemoto, Nobuhiro Tsuji

Research output: Contribution to journal › Article › peer-review

Abstract

Bimodal grain structure was fabricated in a 99.99% purity aluminium by high pressure torsion at ambient temperature in reversal deformation mode at a strain amplitude Δε = 1, strain rate ̇=1.1×10 ^-1s^-1 and hydrostatic pressure P = 5 GPa. Enhanced boundary mobility due to the high purity of the aluminium and homologous temperature coupled with reversal simple shear deformation are found to be responsible for bimodal microstructure formation.

Original language	English
Pages (from-to)	498-501
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2010.11.020
Publication status	Published - 2011 Mar
Externally published	Yes

Subject classification (UKÄ)

Materials Engineering

Free keywords

Aluminium
Bimodal grain size
Electron backscatter diffraction
Severe plastic deformation
Strain reversal

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10.1016/j.scriptamat.2010.11.020

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abstract = "Bimodal grain structure was fabricated in a 99.99% purity aluminium by high pressure torsion at ambient temperature in reversal deformation mode at a strain amplitude Δε = 1, strain rate{\. }=1.1×10 -1s-1 and hydrostatic pressure P = 5 GPa. Enhanced boundary mobility due to the high purity of the aluminium and homologous temperature coupled with reversal simple shear deformation are found to be responsible for bimodal microstructure formation.",

keywords = "Aluminium, Bimodal grain size, Electron backscatter diffraction, Severe plastic deformation, Strain reversal",

author = "Dmitry Orlov and Yoshikazu Todaka and Minoru Umemoto and Nobuhiro Tsuji",

year = "2011",

month = mar,

doi = "10.1016/j.scriptamat.2010.11.020",

language = "English",

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journal = "Scripta Materialia",

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AU - Orlov, Dmitry

AU - Todaka, Yoshikazu

AU - Umemoto, Minoru

AU - Tsuji, Nobuhiro

PY - 2011/3

Y1 - 2011/3

N2 - Bimodal grain structure was fabricated in a 99.99% purity aluminium by high pressure torsion at ambient temperature in reversal deformation mode at a strain amplitude Δε = 1, strain rate ̇=1.1×10 -1s-1 and hydrostatic pressure P = 5 GPa. Enhanced boundary mobility due to the high purity of the aluminium and homologous temperature coupled with reversal simple shear deformation are found to be responsible for bimodal microstructure formation.

AB - Bimodal grain structure was fabricated in a 99.99% purity aluminium by high pressure torsion at ambient temperature in reversal deformation mode at a strain amplitude Δε = 1, strain rate ̇=1.1×10 -1s-1 and hydrostatic pressure P = 5 GPa. Enhanced boundary mobility due to the high purity of the aluminium and homologous temperature coupled with reversal simple shear deformation are found to be responsible for bimodal microstructure formation.

KW - Aluminium

KW - Bimodal grain size

KW - Electron backscatter diffraction

KW - Severe plastic deformation

KW - Strain reversal

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U2 - 10.1016/j.scriptamat.2010.11.020

DO - 10.1016/j.scriptamat.2010.11.020

M3 - Article

AN - SCOPUS:78651270803

SN - 1359-6462

VL - 64

SP - 498

EP - 501

JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

ER -

Formation of bimodal grain structures in high purity Al by reversal high pressure torsion

Abstract

Subject classification (UKÄ)

Free keywords

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