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Assessing texture development and mechanical response in microscale reverse extrusion of copper

Published online by Cambridge University Press:  15 February 2018

Bin Zhang ,
Yooseob Song ,
George Z. Voyiadjis  and
Wen Jin Meng
Bin Zhang
Affiliation:
Mechanical & Industrial Engineering Department, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Yooseob Song
Affiliation:
Civil and Environmental Engineering Department, Louisiana State University, Baton Rouge, Louisiana 70803, USA
George Z. Voyiadjis
Affiliation:
Civil and Environmental Engineering Department, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Wen Jin Meng*
Affiliation:
Mechanical & Industrial Engineering Department, Louisiana State University, Baton Rouge, Louisiana 70803, USA
*
a)Address all correspondence to this author. e-mail: wmeng1@lsu.edu
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Abstract

Axisymmetric reverse extrusion experiments were conducted on annealed Cu rod specimens to form cup-shaped structures with sidewall thicknesses ranging from ∼400 µm down to ∼25 µm. Changes in Cu grain morphology, size, and texture were examined through scanning electron microscopy and electron backscatter diffraction (EBSD). Pole figure and orientation distribution function analysis of EBSD data showed the same texture components in the present small-scale metal forming experiments as those observed in macroscale sheet metal rolling. The plastic deformation became inhomogeneous as the characteristic dimension for extrusion decreased to ∼25 µm, such that the deformation process involved a small number of Cu grains. Extrusion force–punch displacement curves were measured as a function of extruded cup sidewall thickness and compared to outputs of a continuum plasticity finite element analysis in corresponding geometries. The present work illustrates materials characteristics in small-scale metal forming and suggests directions of future work for bringing improved correspondence between experimentation and modeling.

Keywords

microstructuretexturemicroelectro-mechanical (MEMS)
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 8 , 27 April 2018 , pp. 978 - 988
Copyright
Copyright © Materials Research Society 2018 

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Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

Alting, L., Kimura, F., Hansen, H.N., and Bissacco, G.: Micro engineering. CIRP Ann. - Manuf. Technol. 52, 635–657 (2003).CrossRefGoogle Scholar
Masuzawa, T.: State of the art of micromachining. CIRP Ann. - Manuf. Technol. 49, 473–488 (2000).CrossRefGoogle Scholar
Ho, K.H. and Newman, S.T.: State of the art electrical discharge machining (EDM). Int. J. Mach. Tool Manufact. 43, 1287–1300 (2003).10.1016/S0890-6955(03)00162-7CrossRefGoogle Scholar
Meijer, J.: Laser beam machining (LBM), state of the art and new opportunities. J. Mater. Process. Technol. 149, 2–17 (2004).CrossRefGoogle Scholar
Geiger, M., Kleiner, M., Eckstein, R., Tiesler, N., and Engel, U.: Microforming. CIRP Ann. - Manuf. Technol. 50, 445–462 (2001).CrossRefGoogle Scholar
Agnew, S.R., Mehrotra, P., Lillo, T.M., Stoica, G.M., and Liaw, P.K.: Texture evolution of five wrought magnesium alloys during route A equal channel angular extrusion: Experiments and simulations. Acta Mater. 53, 3135–3146 (2005).CrossRefGoogle Scholar
Chen, Y.J., Wang, Q.D., Roven, H.J., Karlsen, M., Yu, Y.D., Liu, M.P., and Hjelen, J.: Microstructure evolution in magnesium alloy AZ31 during cyclic extrusion compression. J. Alloys Compd. 462, 192–200 (2008).CrossRefGoogle Scholar
Robson, J.D., Twier, A.M., Lorimer, G.W., and Rogers, P.: Effect of extrusion conditions on microstructure, texture, and yield asymmetry in Mg–6Y–7Gd–0.5 wt% Zr alloy. Mater. Sci. Eng., A 528, 7247–7256 (2011).CrossRefGoogle Scholar
Pardis, N., Chen, C., Ebrahimi, R., Toth, L.S., Gu, C.F., Beausir, B., and Kommel, L.: Microstructure, texture and mechanical properties of cyclic expansion-extrusion deformed pure copper. Mater. Sci. Eng., A 628, 423–432 (2015).CrossRefGoogle Scholar
Engel, U. and Eckstein, R.: Microforming—From basic research to its realization. J. Mater. Process. Technol. 125/126, 35–44 (2002).CrossRefGoogle Scholar
Chan, W.L., Fu, M.W., and Lu, J.: Experimental and simulation study of deformation behavior in micro-compound extrusion process. Mater. Des. 32, 525–534 (2011).CrossRefGoogle Scholar
Callister, W.D.: Materials Science and Engineering, an Introduction, 7th ed. (Wiley, New York, 2007); ch. 6.Google Scholar
ABAQUS: User’s Manual (Version 6.12) (Dassault Systemes Simulia Corp., Providence, RI, USA, 2012).Google Scholar
Groover, M.P.: Fundamentals of Modern Manufacturing, Materials, Processes, and Systems, 4th ed. (Wiley, Hoboken, New Jersey, 2010).Google Scholar
Kocks, U.F., Tome, C.N., and Wenk, H.R.: Texture and Anisotropy, Preferred Orientations in Polycrystals and Their Effect on Materials Properties (Cambridge University Press, Cambridge, England, 2000).Google Scholar
Lyu, H., Taheri-Nassaj, N., and Zbib, H.M.: A multiscale gradient-dependent plasticity model for size effects. Philos. Mag. 96, 1883–1908 (2016).CrossRefGoogle Scholar
Jiang, J., Sinclair, G.B., and Meng, W.J.: Quasi-static normal indentation of an elasto–plastic substrate by a periodic array of elastic strip punches. Int. J. Solid Struct. 46, 3677–3693 (2009).CrossRefGoogle Scholar
Hu, P., Liu, Y.Q., and Wang, J.C.: Numerical study of the flange earring of deep-drawing sheets with stronger anisotropy. Int. J. Mech. Sci. 43, 279–296 (2001).CrossRefGoogle Scholar
Yoon, J.W., Dick, R.E., and Barlat, F.: A new analytical theory for earring generated from anisotropic plasticity. Int. J. Plast. 27, 1165–1184 (2011).CrossRefGoogle Scholar
Krishnan, N., Cao, J., and Dohda, K.: Study of the size effect on friction conditions in micro-extrusion: Part 1—Micro-extrusion experiments and analysis. ASME J. Manuf. Sci. Eng. 129, 669–676 (2007).CrossRefGoogle Scholar
Evans, A.G. and Hutchinson, J.W.: A critical assessment of theories of strain gradient plasticity. Acta Mater. 57, 1675–1688 (2009).CrossRefGoogle Scholar
Abu Al-Rub, R.K. and Voyiadjis, G.Z.: Analytical and experimental determination of the material intrinsic length scale of strain gradient plasticity theory from micro- and nano-indentation experiments. Int. J. Plast. 20, 1139–1182 (2004).CrossRefGoogle Scholar
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