Simple shear extrusion as an efficient severe plastic deformation technique: a review

Abstract

Simple shear extrusion was designed in 2009 as a novel severe plastic deformation technique to obtain ultrafine-grained materials. During the past years, extensive work has been done to introduce and clarify this technique's characteristics and investigate its application in different areas of materials science and engineering. Owing to the inherent phenomenon of strain reversal associated with this technique and different available processing routes, this method is proven to be useful in material processing. This article aims to summarise the ability of this process to produce ultrafine-grained materials and discuss the potential of this process for industrialisation.

KEYWORDS:

• Severe plastic deformation
• simple shear extrusion
• nanostructured materials
• ultrafine-grained materials

Note

1. Amplitude is defined as thedistance between the peak and valley of two curves in the same plane in Figure 10.

Acknowledgments

An in-depth assessment of this process and other SPD techniques developed at Shiraz University has been due to the cooperation of international partners in the research works over the last decade. Therefore, the first author wishes to thank all international colleagues, including (ordered alphabetically): Hiroyuki Miyamoto, Department of Mechanical Engineering, Doshisha University, Japan; Hyoung Seop Kim, Department of Materials Science and Engineering & Graduate Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology, South Korea; Jose Maria Cabrera Marrero, Department of Materials Science and Engineering, Polytechnic University of Catalunya, Spain; Laszlo S. Toth, Laboratory of Excellence on Design of Alloy Metals for Low-Mass Structures (DAMAS), Université de Lorraine, France; Lembit Kommel, Department of Materials Engineering, Tallinn University of Technology, Estonia; Nobuhiro Tsuji, department of materials science and engineering, Kyoto University, Japan; Terence G. Langdon, Materials Research Group, Department of Mechanical Engineering, University of Southampton, UK.

Disclosure statement

No potential conflict of interest was reported by the author(s).