Structural and Mechanical Behaviour of Severe Plastically Deformed OFE Copper Processed by Constrained Groove Pressing Technique

S.S. Satheesh Kumar; T. Raghu

doi:10.4028/www.scientific.net/MSF.710.229

Paper Titles

Optimisation of Laser Process Parameter on Laser Transformation Hardening of AISI440C
p.203

Simulation of Cooling Rate of Gray Cast Iron Casting in a Sand Mold and its Experimental Validation
p.208

Study of Shell Cracking Behavior and its Remedies in Investment Casting Process Using Quick Cast Rapid Prototype Polymer Patterns
p.214

High Strain Rate Superplasticity in an Al-Mg-Sc-Zr Alloy Produced by Equal Channel Angular Pressing and Subsequent Cold and Warm Rolling
p.223

Structural and Mechanical Behaviour of Severe Plastically Deformed OFE Copper Processed by Constrained Groove Pressing Technique
p.229

Friction Stir Processed Rare Earth Containing Magnesium Alloy for High Temperature Application
p.235

Strengthening Behavior of Bulk Ultra Fine Grained Aluminum Alloys
p.241

Equal Channel Angular Pressing of Aluminum-Alumina In Situ Metal Matrix Composite
p.247

Microstructural and Mechanical Characterization of Friction Stir Processed 5086 Aluminum Alloy
p.253

HomeMaterials Science ForumMaterials Science Forum Vol. 710Structural and Mechanical Behaviour of Severe...

Structural and Mechanical Behaviour of Severe Plastically Deformed OFE Copper Processed by Constrained Groove Pressing Technique

Abstract:

Oxygen free electrolytic (OFE) grade copper sheets (5mm thick) are severe plastically deformed by constrained groove pressing technique (CGP) at room temperature up to three passes thereby imparting a total plastic strain of 3.48 throughout the sheet material. The revelation of significant grain refinement investigated by light microscopy in constrained groove pressed sheets markedly signifies the ability of CGP technique for processing fine grained sheet materials. Relatively higher grain refinement rates are observed during initial passes. Deformation homogeneity evaluated from Vickers microhardness measurements indicated inhomogeneous deformation behaviour during early stages of straining; however enhancement in deformation homogeneity is observed later. CGP processed sheets subjected to room temperature tensile tests showed significant increase in strength associated with drop in ductility. Marginal gain in ductility coupled with slight decrease in strength attributed to the dominance of dislocation recovery is observed after third pass.

You might also be interested in these eBooks

Advances in Metallic Materials and Manufacturing Processes for Strategic Sectors

View Preview

Info:

Periodical:

Materials Science Forum (Volume 710)

Pages:

229-234

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.710.229

Citation:

Cite this paper

Online since:

January 2012

Authors:

S.S. Satheesh Kumar, T. Raghu

Keywords:

Constrained Groove Pressing (CGP), Fine Grained Materials, OFE Copper, Severe Plastic Deformation (SPD)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk nanostructured materials by severe plastic deformation, Progr. Mat. Sci. 45 (2000) 103-189.

DOI: 10.1016/s0079-6425(99)00007-9

Google Scholar

[2] V.M Segal, Materials Processing by Simple Shear, Mat. Sci. Eng. A197 (1995) 157-164.

Google Scholar

[3] G.A. Salishchev, S.Yu.Mironov, S.Vzherebtsov, Mechanism of sub-microcrystalline structure formation in titanium and two phase titanium alloy during warm severe processing, Rev. Adv. Mater. Sci. 11 (2006) 152-158.

Google Scholar

[4] R.Z. Valiev, N.A. Krasilnikov, N.K. Tenev, Plastic deformation of alloys with submicron-grained structure, Mat.Sci.Eng. A197 (1991) 35-40.

DOI: 10.1016/0921-5093(91)90316-f

Google Scholar

[5] Y.Saito, H.Utsunomiya, N.Tsuji, T.Sakai, Novel ultra-high straining process for bulk materials: Development of the accumulative roll-bonding (ARB) process Acta Mater. 47 (1999) 579-583.

DOI: 10.1016/s1359-6454(98)00365-6

Google Scholar

[6] D.H. Shin, J.J. Park, Y.S. Kim, K.T. Park, Constrained groove pressing and its application to grain refinement of aluminum, Mater. Sci. Eng. A328 (2002) 98-103.

DOI: 10.1016/s0921-5093(01)01665-3

Google Scholar

[7] A.Krishnaiah, U.Chakkingal, P.Venugopal, Applicability of the groove pressing technique for grain refinement in commercial purity copper, Mater. Sci. Eng. A410-411 (2005) 337-340.

DOI: 10.1016/j.msea.2005.08.101

Google Scholar

[8] S.S. Satheesh Kumar, T.Raghu, Tensile behaviour and strain hardening characteristics of constrained groove pressed nickel sheets, Materials & Design. 32(2011) 4650-4657.

DOI: 10.1016/j.matdes.2011.03.081

Google Scholar

[9] S.S. Satheesh Kumar, T.Raghu, Processing and characterization of pure nickel sheets by constrained groove pressing (CGP) technique, Materials Science Forum. 667-669 (2011) 523-528.

DOI: 10.4028/www.scientific.net/msf.667-669.523

Google Scholar

[10] Kaiping Peng, Ying Zhang, Leon L Shaw, K.-W. Qian, Microstructure dependence of a Cu- 38Zn alloy on processing conditions of constrained groove pressing, Acta Mater. Vol. 57 (2009) 5543-5553.

DOI: 10.1016/j.actamat.2009.07.049

Google Scholar

[11] F.Khodabakhshi, M.Kazeminezhad, A.H. Kokabi, Constrained groove pressing of low carbon steel: Nano-structure and mechanical properties, Mater. Sci. Eng. A527 (2010) 4043-4049.

DOI: 10.1016/j.msea.2010.03.005

Google Scholar

[12] C.Z.Xu, Q,J.Wang, M.S Zheng, J.W Zhu, J.D Li, M.Q Huang, Microstructure and properties of ultra-fine grain Cu–Cr alloy prepared by equal-channel angular pressing, Mater Sci. Eng. 459A (2007) 303-308.

DOI: 10.1016/j.msea.2007.01.105

Google Scholar

[13] P.W.J.McKenzie,R.Lapovok, Y.Estrin, The influence of back pressure on ECAP processed AA 6016: Modeling and experiment: Acta Mater. 55 (2007) 2985-2993.

DOI: 10.1016/j.actamat.2006.12.038

Google Scholar

[14] F.J. Humphreys, M.Hatherly, Recrystallization and Related Annealing Phenomena, 2nd ed., Oxford, 2004.

Google Scholar