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Nano-TiB2 reinforced ultrafine-grained pure Al produced by flux-assisted synthesis and asymmetrical rolling

Published online by Cambridge University Press:  03 November 2014

Zhiming Li Open the ORCID record for Zhiming Li [Opens in a new window] ,
Dong Chen ,
Haowei Wang ,
Enrique J. Lavernia  and
Aidang Shan
Zhiming Li*
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; and Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, USA
Dong Chen*
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Haowei Wang
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Enrique J. Lavernia
Affiliation:
Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, USA
Aidang Shan
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*
a)Address all correspondence to these authors. e-mail: li-zhiming@hotmail.com
b)e-mail: chend@sjtu.edu.cn
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Abstract

In situ nano-TiB2 reinforced ultrafine-grained (UFG) Al composites were prepared via combined processes of flux-assisted synthesis (FAS) and asymmetrical rolling (ASR). The UFG Al composite with an ASR reduction ratio of 97% exhibits an average matrix grain size of 380 nm and an average TiB2 particulate size of 50 nm. Dislocation density in the composites is higher than that corresponding to the high purity (99.99 wt%) Al under identical processing conditions. The yield and ultimate tensile strength values of the UFG Al composites processed with an ASR reduction ratio of 97% are approximately 9 and 5 times higher relative to those of the initial coarse-grained Al, respectively. Moreover, the UFG Al composite with an ASR reduction ratio of 97% exhibits a higher elongation than that corresponding to the UFG pure Al under identical processing conditions, suggesting that nanoparticulates contribute to the overall plastic deformation when the matrix grains are refined to the UFG regime. Moreover, analysis of the strengthening behavior reveals no clear evidence that Orowan strengthening contributes significantly to the overall yield strength of the Al nanocomposites studied herein.

Keywords

ultrafine grain (UFG)AlcompositeTiB2 particulatecastingasymmetrical rolling (ASR)
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 21 , 14 November 2014 , pp. 2514 - 2524
Copyright
Copyright © Materials Research Society 2014 

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References

REFERENCES

Li, Y., Zhao, Y.H., Ortalan, V., Liu, W., Zhang, Z.H., Vogt, R.G., Browning, N.D., Lavernia, E.J., and Schoenung, J.M.: Investigation of aluminum-based nanocomposites with ultra-high strength. Mater. Sci. Eng., A 527, 305 (2009).Google Scholar
Lin, T., Yang, Q., Tan, C., Liu, B., and McDonald, A.: Processing and ballistic performance of lightweight armors based on ultra-fine-grain aluminum composites. J. Mater. Sci. 43, 7344 (2008).Google Scholar
Zhang, Z., Topping, T., Li, Y., Vogt, R., Zhou, Y., Haines, C., Paras, J., Kapoor, D., Schoenung, J.M., and Lavernia, E.J.: Mechanical behavior of ultrafine-grained Al composites reinforced with B4C nanoparticles. Scr. Mater. 65, 652 (2011).Google Scholar
Krasilnikov, N.A. and Sharafutdiniv, A.: High strength and ductility of nanostructured Al-based alloy, prepared by high-pressure technique. Mater. Sci. Eng., A 463, 74 (2007).CrossRefGoogle Scholar
Chauhan, M., Roy, I., and Mohamed, F.: High-strain-rate superplasticity in bulk cryomilled ultra-fine-grained 5083 Al. Metall. Mater. Trans. A 37, 2715 (2006).CrossRefGoogle Scholar
Ma, K., Wen, H., Hu, T., Topping, T.D., Isheim, D., Seidman, D.N., Lavernia, E.J., and Schoenung, J.M.: Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy. Acta Mater. 62, 141 (2014).Google Scholar
Lahiri, D., Bakshi, S.R., Keshri, A.K., Liu, Y., and Agarwal, A.: Dual strengthening mechanisms induced by carbon nanotubes in roll bonded aluminum composites. Mater. Sci. Eng., A 523, 263 (2009).Google Scholar
Vogt, R., Zhang, Z., Li, Y., Bonds, M., Browning, N.D., Lavernia, E.J., and Schoenung, J.M.: The absence of thermal expansion mismatch strengthening in nanostructured metal–matrix composites. Scr. Mater. 61, 1052 (2009).Google Scholar
Edalati, K., Ashida, M., Horita, Z., Matsui, T., and Kato, H.: Wear resistance and tribological features of pure aluminum and Al-Al2O3 composites consolidated by high-pressure torsion. Wear 310, 83 (2014).Google Scholar
Li, Y., Lin, Y.J., Xiong, Y.H., Schoenung, J.M., and Lavernia, E.J.: Extended twinning phenomena in Al-4%Mg alloys/B4C nanocomposite. Scr. Mater. 64, 133 (2011).Google Scholar
Chawla, N. and Chawla, K.K.: Metal matrix composites (Springer, New York, NY, 2006).Google Scholar
Rosso, M.: Ceramic and metal matrix composites: Routes and properties. J. Mater. Process. Technol. 175, 364 (2006).Google Scholar
Amateau, M.F.: Progress in the development of graphite-aluminum composites using liquid infiltration technology. J. Compos. Mater. 10, 279 (1976).Google Scholar
Bathula, S., Anandani, R.C., Dhar, A., and Srivastava, A.K.: Microstructural features and mechanical properties of Al 5083/SiCp metal matrix nanocomposites produced by high energy ball milling and spark plasma sintering. Mater. Sci. Eng., A 545, 97 (2012).Google Scholar
Salimi, S., Izadi, H., and Gerlich, A.P.: Fabrication of an aluminum–carbon nanotube metal matrix composite by accumulative roll-bonding. J. Mater. Sci. 46, 409 (2011).Google Scholar
Laha, T., Chen, Y., Lahiri, D., and Agarwal, A.: Tensile properties of carbon nanotube reinforced aluminum nanocomposite fabricated by plasma spray forming. Composites, Part A 40, 589 (2009).CrossRefGoogle Scholar
He, C., Zhao, N., Shi, C., Du, X., Li, J., Li, H., and Cui, Q.: An approach to obtaining homogeneously dispersed carbon nanotubes in Al powders for preparing reinforced Al-matrix composites. Adv. Mater. 19, 1128 (2007).Google Scholar
Teixeira, V., Soares, P., Martins, A.J., Carneiro, J., and Cerqueira, F.: Nanocomposite metal Amorphous-carbon thin films deposited by hybrid PVD and PECVD technique. J. Nanosci. Nanotechnol. 9, 4061 (2009).Google Scholar
Tjong, S.C. and Ma, Z.Y.: Microstructural and mechanical characteristics of in situ metal matrix composites. Mater. Sci. Eng., R 29, 49 (2000).Google Scholar
Lu, L., Lai, M., and Chen, F.: Al-4 wt% Cu composite reinforced with in situ TiB2 particles. Acta Mater. 45, 4297 (1997).Google Scholar
Kongshaug, D.R., Ferguson, J., Schultz, B.F., and Rohatgi, P.K.: Reactive stir mixing of Al–Mg/Al2O3np metal matrix nanocomposites: Effects of Mg and reinforcement concentration and method of reinforcement incorporation. J. Mater. Sci. 49, 2106 (2014).Google Scholar
Li, Z., Fu, L., Fu, B., and Shan, A.: Effects of annealing on microstructure and mechanical properties of nano-grained titanium produced by combination of asymmetric and symmetric rolling. Mater. Sci. Eng., A 558, 309 (2012).Google Scholar
Hwang, Y-M. and Tzou, G-Y.: Analytical and experimental study on asymmetrical sheet rolling. Int. J. Mech. Sci. 39, 289 (1997).Google Scholar
Ungár, T.: Dislocation densities, arrangements and character from x-ray diffraction experiments. Mater. Sci. Eng., A 309–310, 14 (2001).Google Scholar
Ungar, T., Gubicza, J., Ribarik, G., and Borbely, A.: Crystallite size distribution and dislocation structure determined by diffraction profile analysis: Principles and practical application to cubic and hexagonal crystals. J. Appl. Crystallogr. 34, 298 (2001).Google Scholar
Ungar, T., Dragomir, I., Revesz, A., and Borbely, A.: The contrast factors of dislocations in cubic crystals: The dislocation model of strain anisotropy in practice. J. Appl. Crystallogr. 32, 992 (1999).Google Scholar
Seidman, D.N., Marquis, E.A., and Dunand, D.C.: Precipitation strengthening at ambient and elevated temperatures of heat-treatable Al (Sc) alloys. Acta Mater. 50, 4021 (2002).Google Scholar
Schumacher, P., Greer, A., Worth, J., Evans, P., Kearns, M., Fisher, P., and Green, A.: New studies of nucleation mechanisms in aluminium alloys: Implications for grain refinement practice. Mater. Sci. Technol. 14, 394 (1998).Google Scholar
Kim, C-S., Sohn, I., Nezafati, M., Ferguson, J.B., Schultz, B., Bajestani-Gohari, Z., Rohatgi, P., and Cho, K.: Prediction models for the yield strength of particle-reinforced unimodal pure magnesium (Mg) metal matrix nanocomposites (MMNCs). J. Mater. Sci. 48, 4191 (2013).Google Scholar
Hillert, M.: Inhibition of grain growth by second-phase particles. Acta Metall. 36, 3177 (1988).Google Scholar
Schultz, B.F., Ferguson, J.B., and Rohatgi, P.K.: Microstructure and hardness of Al2O3 nanoparticle reinforced Al–Mg composites fabricated by reactive wetting and stir mixing. Mater. Sci. Eng., A 530, 87 (2011).Google Scholar
Tjong, S.C. and Tam, K.F.: Mechanical and thermal expansion behavior of hipped aluminum–TiB2 composites. Mater. Chem. Phys. 97, 91 (2006).Google Scholar
Vogelsang, M., Arsenault, R., and Fisher, R.: An in situ HVEM study of dislocation generation at Al/SiC interfaces in metal matrix composites. Metall. Trans. A 17, 379 (1986).Google Scholar
Evers, L.P., Brekelmans, W.A.M., and Geers, M.G.D.: Scale dependent crystal plasticity framework with dislocation density and grain boundary effects. Int. J. Solids Struct. 41, 5209 (2004).Google Scholar
Ashby, M.F.: The deformation of plastically non-homogeneous materials. Philos. Mag. 21, 399 (1970).Google Scholar
Courtney, T.H.: Mechanical Behavior of Materials (Waveland Press, Long Grove, 2005).Google Scholar
Bailey, J.E. and Hirsch, P.B.: The dislocation distribution, flow stress, and stored energy in cold-worked polycrystalline silver. Philos. Mag. 5, 485 (1960).Google Scholar
Redsten, A.M., Klier, E.M., Brown, A.M., and Dunand, D.C.: Mechanical properties and microstructure of cast oxide-dispersion-strengthened aluminum. Mater. Sci. Eng., A 201, 88 (1995).Google Scholar
Hall, E.O.: The deformation and ageing of mild steel: III discussion of results. Proc. Phys. Soc. B 64, 747 (1951).Google Scholar
Smith, W.F. and Hashemi, J.: Foundations of Materials Science and Engineering, 4th ed. (McGraw-Hill, New York, 2006).Google Scholar
Yu, C.Y., Kao, P.W., and Chang, C.P.: Transition of tensile deformation behaviors in ultrafine-grained aluminum. Acta Mater. 53, 4019 (2005).Google Scholar
Tsuji, N., Ito, Y., Saito, Y., and Minamino, Y.: Strength and ductility of ultrafine grained aluminum and iron produced by ARB and annealing. Scr. Mater. 47, 893 (2002).Google Scholar
Carlton, C. and Ferreira, P.: What is behind the inverse Hall–Petch effect in nanocrystalline materials?. Acta Mater. 55, 3749 (2007).Google Scholar
Nieh, T. and Wadsworth, J.: Hall-Petch relation in nanocrystalline solids. Scr. Metall. Mater. 25, 955 (1991).Google Scholar
Hansen, N.: The effect of grain size and strain on the tensile flow stress of aluminium at room temperature. Acta Metall. 25, 863 (1977).Google Scholar
Takata, N., Ohtake, Y., Kita, K., Kitagawa, K., and Tsuji, N.: Increasing the ductility of ultrafine-grained copper alloy by introducing fine precipitates. Scr. Mater. 60, 590 (2009).Google Scholar
Koch, C.C.: Optimization of strength and ductility in nanocrystalline and ultrafine grained metals. Scr. Mater. 49, 657 (2003).Google Scholar