Title: A review on wrought magnesium alloys processed by equal channel angular pressing

Authors: Muralidhar Avvari; S. Narendranath; H. Shivananda Nayaka

Addresses: Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal-575025, Karnataka, India ' Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal-575025, Karnataka, India ' Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal-575025, Karnataka, India

Abstract: Magnesium and its alloys with severe plastic deformation (SPD) techniques are more attractive as structural parts in many industrial applications because of their advantages. In this paper, the importance of wrought magnesium alloys with their applications to accomplish the essential development of components is reviewed. In addition, the different approaches of equal channel angular pressing (ECAP) process for refining the grain size to achieve the ultrafine grained material on the bulk metals are discussed. Recent developments in the ECAP process are outlined clearly with their importance to overcome many complexities. Various factors like processing temperature of a specimen, die geometry, ram speed, back pressure and processing routes influencing during ECAP process of wrought magnesium alloys at different conditions such as channel angle and corner or outer arc angle are discussed. Finally, the properties of ECAP processed wrought alloys are outlined for improving the microstructure in structural parts.

Keywords: severe plastic deformation; SPD; equal channel angular pressing; ECAP; wrought magnesium alloys; grain refinement; mechanical properties; processing temperature; die geometry; ram speed; back pressure; processing routes; microstructure; structural components.

DOI: 10.1504/IJMPT.2015.071775

International Journal of Materials and Product Technology, 2015 Vol.51 No.2, pp.139 - 164

Accepted: 03 Aug 2014
Published online: 18 Sep 2015 *

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