Journal ArticleDOI
Finite element analysis of material flow in equal channel angular pressing
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This article is published in Scripta Materialia.The article was published on 2001-03-20. It has received 117 citations till now. The article focuses on the topics: Forming processes & Finite element method.read more
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Principles of equal-channel angular pressing as a processing tool for grain refinement
TL;DR: In this article, a review examines recent developments related to the use of ECAP for grain refinement including modifying conventional ECAP to increase the process efficiency and techniques for up-scaling the procedure and for the processing of hard-to-deform materials.
Journal ArticleDOI
The evolution of homogeneity and grain refinement during equal-channel angular pressing: A model for grain refinement in ECAP
TL;DR: In this paper, the Vickers microhardness was measured on the polished cross-sections of each as-pressed billet and the results were plotted in the form of color-coded maps to provide a pictorial depiction of the hardness distributions throughout the cross-section.
Journal ArticleDOI
Dislocation density-based modeling of deformation behavior of aluminium under equal channel angular pressing
TL;DR: In this paper, the deformation behavior of aluminium during equal channel angular pressing (ECAP) was calculated on the basis of a dislocation density-based model, and the behavior of the material under ECAP was simulated using the finite element method (FEM).
Journal ArticleDOI
Finite element analysis of the plastic deformation zone and working load in equal channel angular extrusion
TL;DR: In this article, the formation of the plastic deformation zone (PDZ) and evolution of the working load with ram displacement during a single pass of equal channel angular extrusion (ECAE) with intersection angle 90° were analyzed.
Journal ArticleDOI
Slip line solutions, deformation mode and loading history during equal channel angular extrusion
TL;DR: In this article, equal channel angular extrusion (ECAE) is analyzed by the slip line method and full solutions are considered in function of contact friction, backpressure and tool design.
References
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Journal ArticleDOI
Materials processing by simple shear
TL;DR: In this paper, simple shear can be considered a "near ideal" deformation method for structure and texture formation in metal-working, and the unusual effects that are observed in both the structure and physical-mechanical properties of various metals and alloys suggest many new applications of the simple Shear method in materials synthesis and processing.
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Principle of equal-channel angular pressing for the processing of ultra-fine grained materials
TL;DR: In this paper, it has been shown that submicrometer-grained structures may be produced in a wide range of materials (e.g. pure metals, metallic alloys including superalloys, intermetallics, semiconductors) by subjecting these materials to a very high plastic strain using either equal-channel angular (ECA) pressing or torsion straining under high pressure.
Journal ArticleDOI
Finite element modelling of equal channel angular extrusion
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Direct observation of shear deformation during equal channel angular pressing of pure aluminum
TL;DR: In this paper, a special method is employed to eliminate the surface friction effect so that a clear shear deformation figure can be observed, which was proved to be correct by observation of ECA pressing of plasticine with a transparent plexiglass tool.