Abstract
The microstructure characteristics of nanocrystalline magnesium-based alloy processed by cryomilling and spark plasma sintering were investigated. The as-received and cryomilled powders and the consolidated bulk material were characterized by scanning and transmission electron microscopies, x-ray diffraction, and electron dispersive spectroscopy techniques. The cryomilled powders resulted in an average grain size of 25 nm. After spark plasma sintering, a bimodal grain size distribution with coarse grains around 500 nm and fine grains of 52 nm, which is one of the smallest grain sizes reported in bulk nanostructured Mg alloys, was found. Our results suggest this novel process as a viable method to provide new opportunities for the development of nanostructured Mg-based alloys.
Similar content being viewed by others
References
H. Gleiter, J. Weissmuller, O. Wollersheim, and R. Wurschum: Nanocrystalline materials: A way to solids with tunable electronic structures and properties. Acta Mater. 49, 737 (2001).
Y. Champion, C. Langlois, S. Guerin-Mailly, P. Langlois, J.-L. Bonnentien, and M.J. Hytch: Near-perfect elastoplasticity in pure nanocrystalline copper. Science. 11(300), 310 (2003).
G. Konstantatos and E.H. Sargent: Nanostructured materials for photon detection. Nat. Nanotechnol. doi:10.1038/nnano.2010.78 (2010).
T. Spassov, V. Rangelova, and N. Neykov: Nanocrystallization and hydrogen storage in rapidly solidified Mg–Ni–RE alloys. J. Alloy. Comp. 334, 219 (2002).
T. Laha, A. Agarwal, T. McKechnie, K. Rea, and S. Seal: Synthesis of bulk nanostructured aluminum alloy component through vacuum plasma spray technique. Acta Mater. 53, 5429 (2005).
L.P. Bicelli, B. Bozzini, C. Mele, and L. D’Urzo: A Review of nanostructural aspects of metal electrodeposition. Int. J. Electrochem. Sci. 3, 356 (2008).
C.S. Park, J.W. Lee, G.T. Park, H.E. Kima, and J.J. Choi: Microstructural evolution and piezoelectric properties of thick Pb(Zr, Ti)O3 films deposited by multi-sputtering method: Part I. Microstructural evolution. J. Mater. Res. 22, 1367 (2007).
R. Valiev: Nanostructuring of metals by severe plastic deformation for advanced properties. Nat. Mater. 3, 511 (2004).
M. Furukawa, Z. Horita, M. Nemoto, and T.G. Langdon: Review: Processing of metals by equal channel angular pressing. J. Mater. Sci. 36, 2835 (2001).
C.C. Koch: The synthesis and structure of nanocrystalline materials produced by mechanical attrition: A review. Nanostruct. Mater. 2, 109 (1993).
B.W. Chua, L. Lu, and M.O. Lai: Deformation behaviour of ultrafine and nanosize-grained Mg alloy synthesized via mechanical alloying. Philos. Mag. 86, 2919 (2006).
M.A. Thein, L. Lu, and M.O. Lai: Kinetics of grain growth in nanocrystalline magnesium-based metal–metal composite synthesized by mechanical alloying. Comput. Sci. Technol. 66, 531 (2006).
H.J. Fecht: Nanostructure formation by mechanical attrition. Nanostruct. Mater. 6, 33 (1995).
E.J. Lavernia, B.Q. Han, and J.M. Schoenung: Cryomilled nanostructured materials: Processing and properties. Mater. Sci. Eng. A 493, 207 (2008).
C. Suryanarayana: Mechanical alloying and milling. Prog. Mater. Sci. 46, 1 (2001).
V.L. Tellkamp, A. Melmed, and E.J. Lavernia: Mechanical behavior and microstructure of a thermally stable bulk nanostructured Al alloy. Metall. Mater. Trans. A 32, 2335 (2001).
F. Zhou, X.Z. Liao, Y.T. Zhu, S. Dallek, and E.J. Lavernia: Microstructural evolution during recovery and recrystallization of a nanocrystalline Al-Mg alloy prepared by cryogenic ball milling. Acta Mater. 51, 2777 (2003).
B.Q. Han, E.J. Lavernia, and F.A. Mohamed: Tension and compression of bulk Al-7.5 wt% Mg alloy. Philos. Mag. Lett. 83, 89 (2003).
B.Q. Han, Z. Lee, S.R. Nutt, E.J. Lavernia, and F.A. Mohamed: Mechanical properties of an ultrafine-grained Al-7.5 pct Mg alloy. Metall. Mater. Trans. A 34, 603 (2003).
J. Ye, B.Q. Han, Z. Lee, B. Ahn, S.R. Nutt, and J.M. Schoenung: A tri-modal aluminum based composite with super-high strength. Scr. Mater. 53, 481 (2005).
Y.S. Park, K.H. Chung, N.J. Kim, and E.J. Lavernia: Microstructural investigation of nanocrystalline bulk Al–Mg alloy fabricated by cryomilling and extrusion. Mater. Sci. Eng. A 374, 211 (2004).
D.B. Witkin and E. Lavernia: Synthesis and mechanical behavior of nanostructured materials via cryomilling. Prog. Mater. Sci. 51, 1 (2006).
Y. Xun, E.J. Lavernia, and F.A. Mohamed: Synthesis of nanocrystalline Zn-22 Pct Al using cryomilling. Metall. Mater. Trans. 35A, 573 (2004).
M.D. Riktor, S. Deledda, M. Herrich, O. Gutfleisch, H. Fjellvåg, and B.C. Hauback: Hydride formation in ball-milled and cryomilled Mg–Fe powder mixtures. Mater. Sci. Eng. B 158, 19 (2009).
O. Ertorer, A. Zúñiga, T. Topping, W. Moss, and E.J. Lavernia: Mechanical behavior of cryomilled CP-Ti consolidated via quasi-isostatic forging. Metall. Mater. Trans. 40A, 91 (2009).
C.W. Su, L. Lu, and M.O. Lai: A model for the grain refinement mechanism in equal channel angular pressing of Mg alloy from microstructural studies. Mater. Sci. Eng. A 434, 227 (2006).
K. Matsubara, Y. Miyahara, Z. Horita, and T.G. Langdon: Achieving enhanced ductility in a dilute magnesium alloy through severe plastic deformation. Metall. Mater. Trans. 35A, 1735 (2004).
M.T. Pérez-Prado, J.A. del Valle, J.M. Contreras, and O.A. Ruano: Microstructural evolution during large strain hot rolling of an AM60 Mg alloy. Scr. Mater. 50, 661 (2004).
M.T. Pérez-Prado, J.A. del Valle, and O.A. Ruano: Grain refinement of Mg–Al–Zn alloys via accumulative roll bonding. Scr. Mater. 51, 1093 (2004).
R. Chaim, Z. Shen, and M. Nygren: Transparent nanocrystalline MgO by rapid and low-temperature spark plasma sintering. J. Mater. Res. 19, 2527 (2004).
J. Ye, L. Ajdelsztajn, and J.M. Schoenung: Bulk nanocrystalline aluminum 5083 alloy fabricated by a novel technique: Cryomilling and spark plasma sintering. Metal. Mater. Trans. 37A, 2569 (2006).
M. Schoenitz and E. Dreizin: Structure and properties of Al–Mg mechanical alloys. J. Mater. Res. 18, 1827 (2003).
R.E. Reed-Hill and W.D. Robertson: Additional modes of deformation twinning in magnesium. Acta Metall. 5, 717 (1957).
Q. Yu, Z.-W. Shan, J. Li, X. Huang, L. Xiao, J. Sun, and E. Ma: Strong crystal size effect on deformation twinning. Nature 463, 335 (2010).
M. Chen, E. Ma, K.J. Hemker, H. Sheng, Y. Wang, and X. Cheng: Deformation twinning in nanocrystalline aluminum. Science 300, 1275 (2003).
T.T. Sasaki, T. Ohkubo, and K. Hono: Microstructure and mechanical properties of bulk nanocrystalline Al–Fe alloy processed by mechanical alloying and spark plasma sintering. Acta Mater. 57, 3529 (2009).
M.J. Zehetbauer and Y.T. Zhu: Bulk Nanostructured Materials (Wiley-VCH, Weinheim, 2009).
B.Q. Han, Z. Lee, D. Witkin, S. Nutt, and E.J. Lavernia: Deformation behavior of bimodal nanostructured 5083 Al alloys. Metall. Mater. Trans. 36A, 957 (2005).
Acknowledgments
The authors express their appreciation to the Army Research Office (ARO) for financial support of this work under the ARO Contract No. W911NF-09-1-0558. They are particularly grateful to the ARO program manager, Dr. Larry Russell. They are also grateful to the anonymous referees for their insightful remarks that helped to improve the scientific quality of the original manuscript.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Pozuelo, M., Melnyk, C., Kao, W.H. et al. Cryomilling and spark plasma sintering of nanocrystalline magnesium-based alloy. Journal of Materials Research 26, 904–911 (2011). https://doi.org/10.1557/jmr.2010.94
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/jmr.2010.94