AccumEx - A New SPD Technique for Fabricating Lamellar Materials

• Authors: G. Muralidharan , B. Verlinden
• Languages of publication: EN

Abstracts

EN

Accumulated extrusion is a novel plane strain compression technique, akin to the process of accumulated roll bonding, designed to produce ultrafine grained lamellar materials. AA1050 CP-Al processed by AccumEx displayed a grain refinement from 17 μm to 1.8 μm after 2 passes (equivalent strain of 3.2) with an increase in tensile strength of ≈70%. A comparative study with the conventional equal channel angular extrusion technique demonstrated that the former displayed a higher fraction of high angle grain boundaries with very similar trend of grain refinement. Up to now, extrusions up to 8 passes have been performed.

Keywords

EN

81.05.Bx; 81.20.Hy; 81.40.Ef; 83.50.Uv

Discipline

• 81.40.Ef: Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization
• 83.50.Uv: Material processing (extension, molding, etc.)
• 81.05.Bx: Metals, semimetals, and alloys
• 81.20.Hy: Forming; molding, extrusion, etc.[see also, 83.50.Uv Material processing (extension, molding, etc.)]

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 523-526

Dates

published

2015-10

Contributors

author

G. Muralidharan

• Department of Materials Engineering, KU Leuven, B-3001, Belgium

author

B. Verlinden

• Department of Materials Engineering, KU Leuven, B-3001, Belgium

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Identifiers

DOI

10.12693/APhysPolA.128.523