Abstract
The equal channel angular pressing technique which is one of severe plastic deformation is now recognized for achieving very significant grain refinement of ultra-fine grained materials. This study reports the results of the mechanical tests and the microstructural analysis carried out on the specimens of ultra-fine grained copper processed by ECAP technique at room temperature using a die with a 126° between the die channels. Hardness test and tensile tests were conducted for samples cut out in two different directions to evaluate the mechanical properties. The microstructural characterization was carried out using optical electron microscope (OEM) and scanning electronic microscope (SEM). The results show ECAP technique introducing significant grain refinement and produced ultra-fine grains in copper and there is a potential for achieving high ductility and hardness properties in the copper alloy after processing.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Gleiter H (2001) Nanostructured materials: basic concepts and microstructure. Acta Mater 48:1–29
Sanusi KO, Afolabi AS, Muzenda E (2014) Microstructure and mechanical properties of ultra-fine grained copper processed by equal channel angular pressing technique. In: Proceedings of the World congress on engineering and computer science 2014,WCECS 2014,22–24 October, San Francisco, pp 1049–1053
Gleiter H (2000) Nanostructured materials: basic concepts and microstructure. Acta Metall 48:1–29
Furukawa M, Horita Z, Nemoto M, Langdon T (2002) The use of severe plastic deformation for microstructural control. Mater Sci Eng A 324:82–89
Kwon Y-J, Shigematsu I, Saito N (2003) Production of ultra-fine grained aluminum alloy using friction stir process. Mater Trans 44(7):1343–1350
Valiev R (2003) Paradoxes of severe plastic deformation. Adv Eng Mater 5(5):296–300
Kumar K, Swygenhoven H, Suresh S (2003) Mechanical behaviour of nanocrystalline metals and alloys. Acta Mater 51:5743–5774
Langdon T (2011) Processing by severe plastic deformation: historical developments and current impact. Mater Sci Forum 9(4):667–669
El-Rayesa MM, El-Danafa EA (2012) The influence of multi-pass friction stir processing on the microstructural and mechanical properties of Aluminum Alloy 6082. Mater Process Technol 212:1157–1168
Berbon P, Tsenev N, Valiev R, Furukuwa M, Horita Z, Nemoto M (1998) Fabrication of bulk ultrafine-grained materials through intense plastic straining. Metall Materials Trans 29:2237–2243
Horita Z, Furukawa M, Nemoto M, Langdon TG (2000) Development of fine grained structures using severe plastic deformation. Mater Sci Technol 16(11–12):1239–1245
Valiev R (2003) Paradoxes of severe plastic deformation. Adv Eng Mater 5(5):296–300
Kurzydlowski K (2004) Microstructural refinement and properties of metals processed by severe plastic deformation. Bulleting of the polish academy of sciences and technical sciences, vol 52, no. N4
Segal V, Reznikov V, Drobyshevskiy A, Kopylov V (1981) Metally. Russ Metall 1(115):99
Iwahashi Y, Horita Z, Nemoto M, Langdon TG (1998) The process of grain refinement in equal-channel angular pressing. Acta Mater 46(9):3317–3331
Valiev R, Langdon T (2006) Development in used of ECAP processing for grain refinement. Rev Adv Mater Sci 13:15–26
Segal V (1999) Equal channel angular extrusion: from macromechanics to structure formation. Mater Sci Eng A 271:322–333
Semiatin S, DeLo D (2000) Equal channel angular extrusion of difficult-to-work alloys. Mater Des 21:311–322
Kommel L, Hussainova I, Volobueva O (2007) Microstructure and properties development of copper during severe plastic deformation. Mater Des 28:2121–2128
Iwahashi Y, Wang J, Horita Z, Nemoto M, Langdon TG (1996) Principle of equal-channel angular pressing for the processing of ultra-fine grained materials. Scripta Mater 35(2):143–146
Valiev R, Islamgaliev R, Alexandrov I (2000) Bulk nanostructured materials from severe plastic deformation. Prog Mat Sci 45(2):103–189
Zhu Y, Langdon T (2004) Fundamentals of nanostructured materials by severe plastic deformation. J Met 56(10):58–63
Segal VM (1995) Material processing by simple shear. Mater Sci Eng A 197:157–164
Furukawa M, Iwahashi Y, Horita Z, Nemoto M, Langdon T (1998) The shearing characteristics associated with equal-channel angular pressing. Mater Sci Eng A 257:328–332
Horita J (2005) Production of ultrafine-grianed structures using equal-channel angular pressing. J Jpn Weld Soc 74:88
Valiev RZ, Langdon TG (2006) Development in used of ECAP processing for grain refinement. Rev Adv Mater Sci 13:15–26
Acknowledgments
The authors gratefully acknowledge the financial supports of the National Research Foundation (NRF) and Faculty of Engineering and the Built Environment, Department of Chemical Engineering University of Johannesburg, South Africa.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Oladele, S.K., Samuel, A.A., Edison, M. (2015). Characterizations Severe Plastic Deformation of Copper Processed by Equal Channel Angular Pressing Technique. In: Kim, H., Amouzegar, M., Ao, Sl. (eds) Transactions on Engineering Technologies. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7236-5_36
Download citation
DOI: https://doi.org/10.1007/978-94-017-7236-5_36
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-017-7235-8
Online ISBN: 978-94-017-7236-5
eBook Packages: EngineeringEngineering (R0)