Enhancement of Mechanical Properties of AA 6351 Using Equal Channel Angular Extrusion (ECAE)

Raja Thiyagarajan^1, and A. Gopinath²

¹Department of Mechanical engineering, Wollo University, South wollo, Ethiopia

²Department of Mechanical engineering, Bannari Amman Institute of Technology, Sathyamangalam, India

Cite this paper:
Raja Thiyagarajan and A. Gopinath. Enhancement of Mechanical Properties of AA 6351 Using Equal Channel Angular Extrusion (ECAE). Materials Science and Metallurgy Engineering. 2014; 2(2):26-30. doi: 10.12691/msme-2-2-3

Abstract

The Equal Channel Angular Extrusion (ECAE) process is a promising technique for imparting large plastic deformation to materials without a resultant decrease in cross-sectional area. The die consists of two channels of equal cross section intersecting at an angle of 110°C. The work piece is placed in one channel and extruded into the other using a punch. In the present study, Influence of equal channel angular extrusion on room temperature, the mechanical properties of Aluminum Alloy AA 6351 alloy was investigated. The results show that, the mechanical properties of Aluminum AA 6351alloy, such as yield strength, ultimate tensile strength and elongation, can be improved heavily by equal channel angular extrusion. Processing routes, processing temperature and extrusion passes have important influence on room temperature mechanical properties of processed Aluminum AA 6351alloy by equal channel angular extrusion. The mechanical properties such as yield strength and ultimate tensile strength can be enhanced when Aluminum AA 6351 alloy was processed by equal channel angular extrusion for single pass at route A at 303 K.

Keywords:
equal channel angular extrusion (ecae) yield strength ultimate tensile strength hardness microstructure

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