Structure Property Correlation in Ultrafine Grained Copper Processed by Equal Channel Angular Processing
DOI:
https://doi.org/10.18321/ectj66Abstract
Ultra fine grained copper is produced by equal channel angular processing (ECAP) routes.Multiple passing through the ECAP die reveals high grain refinement in first few passes.Transmission electron microscopies in to the samples reveal a grain refinement of 150 μm to 500 nm sized grains after 4 passes. Mechanical properties measuerement shows that the severe plastic deformation has improved the structural strength to 410 MPa. Structure property study confirms the Hall petch strengthening mechanism operational during the deformation process. The effect of initial microstructral inhomogeniety is investigated and it is found to have marginal influence in the grain refinement of the multiple pass ECAP. Process modeling study using finite element models reveal the developed shear strain and stress fields during the deformtion process.
References
2. Valiev R. Z., Islamgaliev R. K. and Alexandrov I. V. Progress in Materials Science 45(2000),p.103.
3. Terence G. Langdon. Materials Science and Engineering A , 462 (2007),p. 3–11.
4. Xu C, Furukawa M, Horita Z, Langdon TG. In: Horita Z, editor.Nanomaterials by severe plastic deformation, Fukuoka, Japan; 2005.p. 19.
5. Mishra a, B.K. Kad b, F. Gregori c, M.A. Meyers Acta Materialia 55 (2007) 13–28.
6. Feltham P, Meakin JD. Philos Mag 1957;2:105.
7. Armstrong RW. In: Bunshah RF, editor. Advances in materials research. New York: Interscience; 1971. p. 101.
8. Haouaoui M, Karaman I, Maier HJ, Hartwig KT Metall Mater Trans A 2004;35:2935.
9. Gourdin WH, Lassila DH. Acta Metall Mater 1991;39:2337.
10. Meyers MA, Andrade U, Chokshi AH. Metall Mater Trans A1995;26:2881.
11. Merz MD, Dahlgren SD.. J Appl Phys 1975;46:3235.
12. Wang S, Murr LE. Metall 1980;13:203.
13. N. Lugo • N. Llorca • J. J. Sun˜ ol • J. M. Cabrera, J Mater Sci (2010) 45:2264–2273.
14. Balasundar I., Sudhakara Rao M., Raghu T. Materials & Design, 30 (2009),P. 1050-1059.
Downloads
Published
How to Cite
Issue
Section
License
You are free to: Share — copy and redistribute the material in any medium or format. Adapt — remix, transform, and build upon the material for any purpose, even commercially.
Eurasian Chemico-Technological Journal applies a Creative Commons Attribution 4.0 International License to articles and other works we publish.
Subject to the acceptance of the Article for publication in the Eurasian Chemico-Technological Journal, the Author(s) agrees to grant Eurasian Chemico-Technological Journal permission to publish the unpublished and original Article and all associated supplemental material under the Creative Commons Attribution 4.0 International license (CC BY 4.0).
Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.