Enhancing the Efficiency of ECAP Processing in Particle Redistribution by Combination of Different Processing Routes

Wen Li Zhang; Wei Liang; Li Ping Bian; Jun Hao Jia

doi:10.4028/www.scientific.net/MSF.667-669.463

Paper Titles

Mechanisms of Microstructure Refinement in Titanium during “abc” Deformation at 400°C
p.439

Texture Manipulation in Commercial Purity Aluminum by Deformation Path Change from ECAP to Plane Strain Compression
p.445

TEM and DSC Investigation of the Recovery of a Recycled Aluminum Processed by Equal Channel Angular Extrusion
p.451

Microstructure and Mechanical Performance of AZ31-1.7 Wt.% Si Alloy Processed by Cyclic Channel Die Compression
p.457

Enhancing the Efficiency of ECAP Processing in Particle Redistribution by Combination of Different Processing Routes
p.463

Decomposition of Nanostructured Martensite in Cu-Al Alloys Processed by High-Pressure Torsion
p.469

Microstructure and Toughness of an AZ80 Mg Alloy Processed by ECAP and Ageing Treatment
p.475

The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers
p.481

Development of Ultra-Fine Grained Structure in an Al-5.4%Mg-0.5%Mn Alloy Processed by ECAP
p.487

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Enhancing the Efficiency of ECAP Processing in Particle Redistribution by Combination of Different Processing Routes

Abstract:

The redistribution of the precipitate particles in Al-5Mg-2.5Si alloy during equal channel angular pressing (ECAP) up to 8 passes in five different routes 8BA, 8BC, 8BC-UD2, 4BA+4BC and 4BC-UD2+4BC is studied. It is shown that route BC, which exhibits an isotropic strain process, is less efficient in particle redistribution compared to route BA and route BC-UD2. Route BA and route BC-UD2 are more effective for particle redistribution, but result in an anisotropy structure with orientated alignment of the particles, especially in the case of route BA. As a compromise, relatively homogeneous microstructures with particles dispersively redistributed are obtained by combination of different processing routes 4BA+4BC and 4BC-UD2+4BC.