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Microstructural and crystallographic response of shock-loaded pure copper

Published online by Cambridge University Press:  07 February 2017

Anuj Bisht ,
Nachiketa Ray ,
Gopalan Jagadeesh  and
Satyam Suwas
Anuj Bisht
Affiliation:
Centre for Nanoscience and Engineering, Indian Institute of Science, Bangalore, India
Nachiketa Ray
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore, India
Gopalan Jagadeesh
Affiliation:
Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India
Satyam Suwas*
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore, India
*
a) Address all correspondence to this author. e-mail: satyamsuwas@materials.iisc.ernet.in
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Abstract

Microstructural and crystallographic aspects of high-velocity forming or “rapid” forming of rolled sheets of pure copper have been investigated in this work. Significant changes in crystallographic orientation and microstructure were observed when thin (0.5 mm) metal sheets of annealed copper were subjected to high strain rate deformation in a conventional shock tube at a very low impulse magnitude (∼0.2 N s), which is inconceivable in conventional metal forming. Shock-loaded samples show characteristic texture evolution with a high brass {110}〈112〉 component. A significant change in grain orientation spread was observed with increasing amount of effective strain without any drastic change in grain size. The texture after deformation was found to be strain-dependent. The path of texture evolution is dependent on the initial texture. Misorientation was limited to less than 5°. Deformation bands and deformation twins were observed. There was a decrease in twin [Σ3 coincidence site lattice (CSL)] boundary number fraction with increasing strain due to the change in twin boundary character to high-angle random boundary (HARB) as a result of dislocation pile up. The study shows the probability of a high-velocity shock wave forming pure Cu.

Keywords

shock wavessheet formingtwin boundary transformationcoppertexture
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 8 , 28 April 2017 , pp. 1484 - 1498
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

Stoffel, M.: Limit states of elastic–viscoplastic plate deformations caused by repeated shock wave-loadings. Part 1: Experimental observation. Mech. Res. Commun. 33(6), 771 (2006).Google Scholar
Stoffel, M.: Limit states of elastic–viscoplastic plate deformations caused by repeated shock wave-loadings. Part 2: Theoretical modelling. Mech. Res. Commun. 33(6), 775 (2006).Google Scholar
Shabadi, R., Suwas, S., Kumar, S., Roven, H., and Dwarkadasa, E.: Texture and formability studies on AA7020 Al alloy sheets. Mater. Sci. Eng., A 558, 439 (2012).Google Scholar
Cohen, J.E., Nelson, A., and De Angelis, R.J.: Some Observations On Shock-Loaded Copper (DTIC Document, Northwestern University, Evanston, 1965).Google Scholar
Dhere, A.G., Kestenbach, H-J., and Meyers, M.A.: Correlation between texture and substructure of conventionally and shock-wave-deformed aluminum. Mater. Sci. Eng. 54(1), 113 (1982).Google Scholar
Higgins, G.T.: The structure and annealing behavior of shock-loaded, cube-oriented copper. Metall. Trans. 2(5), 1277 (1971).Google Scholar
Trueb, L.F.: Electron-microscope study of thermal recovery processes in explosion-shocked nickel. J. Appl. Phys. 40(7), 2976 (1969).Google Scholar
Rose, M. and Berger, T.: Shock deformation of polycrystalline aluminium. Philos. Mag. 17(150), 1121 (1968).Google Scholar
Ray, N., Jagadeesh, G., and Suwas, S.: Response of shock wave deformation in AA5086 aluminum alloy. Mater. Sci. Eng., A 622, 219 (2015).Google Scholar
Suwas, S., Singh, A., Rao, K.N., and Singh, T.: Effect of modes of rolling on evolution of the texture in pure copper and some copper-base alloys: Part I: Rolling texture. Z. Metallkd. 93(9), 918 (2002).CrossRefGoogle Scholar
Suwas, S. and Singh, A.: Role of strain path change in texture development. Mater. Sci. Eng., A 356(1), 368 (2003).Google Scholar
Gurao, N., Sethuraman, S., and Suwas, S.: Effect of strain path change on the evolution of texture and microstructure during rolling of copper and nickel. Mater. Sci. Eng., A 528(25), 7739 (2011).Google Scholar
Vercammen, S., Blanpain, B., De Cooman, B.C., and Wollants, P.: Cold rolling behaviour of an austenitic Fe–30Mn–3Al–3Si TWIP-steel: the importance of deformation twinning. Acta Mater. 52(7), 2005 (2004).Google Scholar
Sidor, J.J., Petrov, R.H., and Kestens, L.A.: Microstructural and texture changes in severely deformed aluminum alloys. Mater. Charact. 62(2), 228 (2011).Google Scholar
Roy, S., Singh, S., Suwas, S., Kumar, S., and Chattopadhyay, K.: Microstructure and texture evolution during accumulative roll bonding of aluminium alloy AA5086. Mater. Sci. Eng., A 528(29), 8469 (2011).Google Scholar
Leffers, T. and Ray, R.K.: The brass-type texture and its deviation from the copper-type texture. Prog. Mater. Sci. 54(3), 351 (2009).Google Scholar
An, X.H., Lin, Q.Y., Wu, S.D., and Zhang, Z.F.: Mechanically driven annealing twinning induced by cyclic deformation in nanocrystalline Cu. Scr. Mater. 68(12), 988 (2013).Google Scholar
An, X.H., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., and Langdon, T.G.: Evolution of microstructural homogeneity in copper processed by high-pressure torsion. Scr. Mater. 63(5), 560 (2010).Google Scholar
An, X.H., Lin, Q.Y., Sha, G., Huang, M.X., Ringer, S.P., Zhu, Y.T., and Liao, X.Z.: Microstructural evolution and phase transformation in twinning-induced plasticity steel induced by high-pressure torsion. Acta Mater. 109, 300 (2016).Google Scholar
Meyers, M.A.: A mechanism for dislocation generation in shock-wave deformation. Scr. Metall. 12(1), 21 (1978).Google Scholar