Abstract
An Al-based composite reinforced with core–shell-structured Ti/Al3Ti was fabricated through a powder metallurgy route followed by hot extrusion and was found to exhibit promising mechanical properties. The ultimate tensile strength and elongation of the composite sintered at 620°C for 5 h and extruded at a mass ratio of 12.75:1 reached 304 MPa and 14%, respectively, and its compressive deformation reached 60%. The promising mechanical properties are due to the core–shell-structured reinforcement, which is mainly composed of Al3Ti and Ti and is bonded strongly with the Al matrix, and to the reduced crack sensitivity of Al3Ti. The refined grains after hot extrusion also contribute to the mechanical properties of this composite. The mechanical properties might be further improved through regulating the relative thickness of Al–Ti intermetallics and Ti metal layers by adjusting the sintering time and the subsequent extrusion process.
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References
X.Y. Liu, X.W. Lv, C.X. Li, and C.G. Bai, Wettability of Ti−Al alloys on TiN substrate at 1758 K, Mater. Today Proc., 2(2015), p. S274.
D. Wearing, A.P. Horsfield, W. Xu, and P.D. Lee, Which wets TiB2 inoculant particles: Al or Al3Ti?, J. Alloys Compd., 664(2015), p. 460.
X.M. Wang, A. Jha, and R. Brydson, In situ fabrication of Al3Ti particle reinforced aluminium alloy metal−matrix composites, Mater. Sci. Eng. A, 364(2004), No. 1-2, p. 339.
J.M. Kunze and C.C. Bampton, Challenges to developing and producing MMCs for space applications, JOM, 53(2001), No. 4, p. 22.
E. Evangelista and S. Spigarelli, Constitutive equations for creep and plasticity of aluminum alloys produced by powder metallurgy and aluminum-based metal matrix composites, Metall. Mater. Trans. A, 33(2002), No. 2, p. 373.
J. Qin, G. Chen, C.H. Ji, X.G. Song, N. Hu, F. Han, and Z.M. Du, Effect of reaction temperature on the microstructures and mechanical properties of high-intensity ultrasonic assisted in-situ Al3Ti/2024 Al composites, J. Alloys Compd., 666(2016), p. 58.
W. Wu, B. Guo, Y. Xue, R. Shen, S. Ni, and M. Song, Ni-AlxNiy core−shell structured particle reinforced Al-based composites fabricated by in-situ powder metallurgy technique, Mater. Chem. Phys., 160(2015), p. 352.
Y.C. Wang, M. Song, S. Ni, and Y. Xue, In situ formed core–shell structured particle reinforced aluminum matrix composites, Mater. Des., 56(2014), No. 4, p. 405.
Y. Xue, R.J. Shen, S. Ni, M. Song, and D.H. Xiao, Fabrication, microstructure and mechanical properties of Al–Fe intermetallic particle reinforced Al-based composites, J. Alloys Compd., 618(2015), p. 537.
Y. Xue, R.J. Shen, S. Ni, D.H. Xiao, and M. Song, Effects of sintering atmosphere on the mechanical properties of Al−Fe particle-reinforced Al-based composites, J. Mater. Eng. Perform., 24(2015), No. 5, p. 1890.
D.J. Harach and K.S. Vecchio, Microstructure evolution in metal-intermetallic laminate (MIL) composites synthesized by reactive foil sintering in air, Metall. Mater. Trans. A, 32(2001), No. 6, p. 1493.
E.B. Tochaee, H.R.M. Hosseini, and S.M.S. Reihani, Fabrication of high strength in-situ Al−Al3Ti nanocomposite by mechanical alloying and hot extrusion: Investigation of fracture toughness, Mater. Sci. Eng. A, 658(2016), p. 246.
V.A. Chianeh, H.R.M. Hosseini, and M. Nofa, Microstructural features and mechanical properties of Al−Al3Ti composite fabricated by in-situ powder metallurgy route, J. Alloys Compd., 473(2009), No. 1-2, p. 127.
V. Raghavan, Al−Ti (Aluminum−Titanium), J. Phase Equilib. Diffus., 26(2005), No. 2, p. 171.
J.P. Liu, Y.Q. Su, Y.J. Xu, L.S. Luo, J.J. Guo, and H.Z. Fu, First phase selection in solid Ti/Al diffusion couple, Rare Met. Mater. Eng., 40(2011), No. 5, p. 753.
H.W. Kerr, J. Cisse, and G.F. Bolling, On equilibrium and non-equilibrium peritectic transformations, Acta Metall., 22(1974), No. 6, p. 677.
I. Ohnuma, Y. Fujita, H. Mitsui, K. Ishikawa, R. Kainuma, and K. Ishida, Phase equilibria in the Ti−Al binary system, Acta Mater., 48(2000), No. 12, p. 3113.
B. Guo, J.H. Yi, S. Ni, R.J. Shen, and M. Song, Factors affecting the microstructure and mechanical properties of Ti−Al3Ti core−shell-structured particle-reinforced al matrix composites, Philos. Mag., 96(2016), No. 12, p. 1197.
B.S. Guo, S. Ni, R.J. Shen, and M. Song, Fabrication of Ti−Al3Ti core−shell structured particle reinforced Al based composite with promising mechanical properties, Mater. Sci. Eng. A, 639(2015), p. 269.
L. Zhang, B.L. Wu, Y.H. Zhao, and X.H. Du, Exploration of Al-based matrix composites reinforced by hierarchically spherical agents, Int. J. Miner. Metall. Mater., 20(2013), No. 8, p. 796.
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This work was financially supported by the Science and Technology Plan Item of Liaoning Province (No. 201601174) and the National Natural Science Foundation of China (No. 51371121).
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Zhang, L., Wu, Bl. & Liu, Yl. Microstructure and mechanical properties of a hot-extruded Al-based composite reinforced with core–shell-structured Ti/Al3Ti. Int J Miner Metall Mater 24, 1431–1437 (2017). https://doi.org/10.1007/s12613-017-1536-9
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DOI: https://doi.org/10.1007/s12613-017-1536-9