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The process of grain refinement in equal-channel angular pressing
Acta Materialia, 1998Abstract Experiments were conducted on high purity aluminum to investigate the process of grain refinement during equal-channel angular (ECA) pressing. Samples were subjected to 1 to 4 pressings and then sectioned for microstructural examination in three mutually perpendicular directions.
Yoshinori Iwahashi +3 more
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The principles of grain refinement in equal-channel angular pressing
Materials Science and Engineering: A, 2007Abstract Equal-channel angular pressing (ECAP) is a convenient processing tool for introducing very significant grain refinement, typically to the submicrometer level, in a wide range of metals. It is shown by experiment that processing by ECAP produces very similar microstructures in single crystals and in polycrystalline materials.
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Equal channel angular pressing of Mg-Y alloy
AIP Conference Proceedings, 2019Tribological wear behaviour of Mg-Y alloy in as cast and ECAP’ed condition has been studied using a pin on disk wear testing machine under the load of 10N & 50N with a sliding temperature of 25°,50° and 100°C with a sliding velocity of 0.3 m/s and sliding distance of 3000m. ECAP was done at a temperature of 350°C up to 4 passes using the route Bc.
Chiranth Bellur Prabhakara +3 more
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Indentation of titanium processed by equal channel angular pressing
Journal of Physics D: Applied Physics, 2008Commercially pure titanium rods were processed by equal channel angular pressing (ECAP) to obtain an ultrafine-grained microstructure. The titanium rods were extruded for 2 passes at 623 K, using three different bending angles of 90°, 120° and 150°. For the bending angle of 90°, the titanium rods were extruded for 4 and 8 passes in addition to 2 passes.
Rong Chen +5 more
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Equal Channel Angular Pressing of Al Alloy AA2219
Advanced Materials Research, 2009Severe plastic deformation processes (SPD) are gaining importance as advanced materials processing techniques and hold immense potential in obtaining ultra fine-grained high strength materials. Among the SPD techniques, Equal channel angular pressing (ECAP) has its own merits to produce materials with ultra fine grains in bulk with better mechanical ...
V. Anil Kumar +4 more
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Optimum processing parameters for equal channel angular pressing
Mechanics of Materials, 2016Abstract This study aims to explore the optimum processing parameters for minimum strain coefficient of variance in equal channel angular pressing based on the analysis of whole steady zone. In order to design the die correctly, it is important to understand the effect of die geometry and processing parameters on the deformation behavior, strain ...
M.A. Agwa, M.N. Ali, Amal E. Al-Shorbagy
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Metal Flow at Equal Channel Angular Pressing with Backpressure
Materials Science Forum, 2006In the present paper a flow pattern of aluminum alloy and copper was investigated by grid procedure, using 2D-modeling and experimental data for ECAP using backpressure. The most important parameters that influence upon flow pattern and deformed state of billets were revealed.
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Equal Channel Angular Pressing of Metallic Powders
Materials Science Forum, 2003Hyoung Seop Kim +3 more
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Influence of Channel Geometry on Superplasticity in Equal-Channel Angular Pressing
Materials Science Forum, 2004Masakazu Kamachi +3 more
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Estimating the equivalent strain in equal-channel angular pressing
Scripta Materialia, 2001Tetsuo Aida +3 more
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