Evaluation of TiAl3 Intermetallic Formation Mechanism and Revolution of Annealing Texture in Al/Ti Powder/Al Laminate Composite Fabricated by Cold Roll Bonding and Post-Annealing Treatment

Document Type : Research Paper

Authors

Department of Materials Engineering, Isfahan University of Technology, 84156-83111, Isfahan, Iran

Abstract

In this paper, bulk sheets of multilayer Al-Ti composites were fabricated by cold roll bonding (CRB) at 50% thickness reduction and annealing in different conditions. The effects of annealing temperature and time on the bonding features of Ti-Al have been evaluated. The microstructural changes were studied by scanning electron microscopy (SEM) and focus ion beam microscope (FIB). A field emission electron microscopy (FEG-SEM) equipped with an electron backscatter diffraction (EBSD) tool was utilized to evaluate microstructural and textural changes. This study revealed that CRB composites of Ti-Al can produce the TiAl3 in relatively short times at annealing temperatures under the Al melting point. The results showed that just the TiAl3 intermetallic layer formed in the Ti/Al interface by 2 h annealing at 590°C. TiAl3 formation mechanism can be stated as following stages, Al phase elimination, Kirkendall voids formation, Ti and TiAl3 phase's volume increasing, micro-crack creation, and finally, easier formation of TiAl3. Mechanical evaluation of Al/TiAl3/Al layered composite showed that low ductility is related to growth and joining of Kirkendall voids around Al/TiAl3 interface that formed after a 2 h annealing at 590°C. Microstructural characterization by EBSD revealed annealing at this condition led to the creation of Al matrix with large grains (about 60 μm) and polycrystalline TiAl3 intermetallic containing small grains (average 5 μm). One of the main outputs from texture analysis is the recrystallization texture components changing after the formation of the TiAl3 intermetallic compound. The presence of large Ti aluminide particles resulted into the creation of a new strong P recrystallization texture component besides R5 and Q.

Keywords

References

[1]    N. Chawla, K.K. Chawla, Metal matrix composites, Springer, New York, US, 2006.
[2]    Y.J. Wei, Y.Q. Li, L.C. Zhu, Y. Liu, X.Q. Lei, G. Wang, Y.X. Wu, Z.L. Mi, J.B. Liu, H.T. Wang, H.J. Gao, Evading the strength–ductility trade-off dilemma in steel through gradient hierarchical nanotwins, Nature Communications, 5 (2014) 3580.
[3]    G.H.S.F.L. Carvalho, I. Galvão, R. Mendes, R.M. Leal, A. Loureio, Friction stir welding and explosive welding of aluminum/copper: process analysis, Materials and Manufacturing Processes, 34(11) (2019) 1243-1250.
[4]    S. Ren, H. Xu, J. Chen, X. Qu, Effects of sintering process on microstructure and properties of flake graphite-diamond/copper composites, Materials and Manufacturing Processes, 31(10) (2016) 1377-1383.
[5]    J.S. Seo, H.S. Jang, D.S. Park, Ultrasonic welding of Ni and Cu sheets, Materials and Manufacturing Processes, 30(9) (2015) 1069-1073.
[6]    K.K. Yogesha, A. Joshi, N. Kumar, R. Jayaganthan, Effect of cryo groove rolling followed by warm rolling (CGW) on the mechanical properties of 5052 Al alloy, Materials and Manufacturing Processes, 32(12) (2017) 1336-1344.
[7]    Y.W. Kim, Intermetallic alloys based on gamma titanium aluminide, JOM, 41(7) (1989) 24-30.
[8]    M. Nofar, H.R. Madaah Hosseini, N. Kolagar-Daroonkolaie, Fabrication of high wear resistant Al/Al3Ti metal matrix composite by in situ hot press method, Materials & Design, 30(2) (2009) 280-286.
[9]    D. Pan, K. Gao, J. Yu, Cold roll bonding of bimetallic sheets and strips, Materials Science and Technology, 5(9) (1989) 934-939.
[10]  Y.B. Sun, Y.Q. Zhao, D. Zhang, C.Y. Liu, H.Y. Diao, Multilayered Ti-Al intermetallic sheets fabricated by cold rolling and annealing of titanium and aluminum, Transactions of Nonferrous Metals Society of China, 21(8) (2011) 1722-1727.
[11]  P.Y. Wang, H.J. Li, L.H. Qi, X.H. Zeng, H.S. Zuo, Synthesis of Al-TiAl3 compound by reactive deposition of molten Al droplets and Ti powders, Progress in Natural Science: Materials International, 21(2) (2011) 153-158.
[12]  Z. Yazdani, M.R. Toroghinejad, H. Edris, A.H.W. Ngan, A novel method for the fabrication of Al-matrix nanocomposites reinforced by mono-dispersed TiAl3 intermetallic via a three-step process of cold-roll bonding, heat-treatment and accumulative roll bonding, Journal of Alloys and Compounds, 747 (2018) 217-226.
[13]  M. Safiri, M. Meratian, M. Panjepor, Fabrication of Al-TiAl3 composite via in-situ accumulative roll bonding (ARB) and annealing, Metallurgical and Materials Transactions A, 50(1) (2019) 415-425.
[14]  Z. Yazdani, M.R. Toroghinejad, H. Edris, A.H.W. Ngan, Effect of cold rolling parameters on bond strength of Ti particle embedded Al strips, Transactions of the Indian Institute of Metals, 71(10) (2018) 2497-2504.
[15]  S.B. Jung, Y. Minamino, T. Yamane, S. Saji, Reaction diffusion and formation of Al3Ni and Al3Ni2 phases in the Al-Ni system, Journal of Materials Science Letters, 12(21) (1993) 1684-1686.
[16]  D. Roy, S. Ghosh, A. Basumallick, B. Basu, Preparation of Ti-aluminide reinforced in situ aluminium matrix composites by reactive hot pressing, Journal of Alloys and Compounds, 436(1-2) (2007) 107-111.
[17]  W.C. Oliver, G.M. Pharr, An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments, Journal of materials research, 7(6) (1992) 1564-1583.
[18]  F.J.J. Van Loo, G.D. Rieck, Diffusion in the titanium-aluminum system-II. Interdiffusion in the composition range between 25 and 100 at. % Ti, Acta Metallurgica, 21(1) (1973) 73.
[19]  L. Xu, Y.Y. Cui, Y.L. Hao, R. Yang, Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples, Materials Science and Engineering: A, 435 (2006) 638-647.
[20]  F. Foadian, M. Soltanieh, M. Adeli, M. Etminanbakhsh, The formation of TiAl3 during heat treatment in explosively welded Ti-Al multilayeres, Iranian Journal of Materials Science and Engineering, 11(4) (2014) 9-12.
[21]  G.P. Chaudhari, V.L. Acoff, Titanium aluminide sheets made using roll bonding and reaction annealing, Intermetallics, 18(4) (2010) 472-478.
[22]  I. Dinaharan, G.A. Kumar, S.J. Vijay, N. Murugan, Development of Al3Ti and Al3Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing, Materials & Design, 63 (2014) 213-222.
[23]  Z.Z. Shen, J.P. Lin, Y.F. Liang, L.Q. Zhang, G.J. Hao, Reaction behaviors occurring in Ti/Al foil metallurgy, Rare Metals, 35(1) (2016) 100-105.
[24]  Y. Mishin, C. Herzig, Diffusion in the Ti±Al system, Acta Materialia, 48 (2000) 589-623.
[25]  I.C. Barlow, H. Jones, W.M. Rainforth, Evolution of microstructure and hardening, and the role of Al3Ti coarsening, during extended thermal treatment in mechanically alloyed Al-Ti-O based materials, Acta Materialia, 49(7) (2001) 1209-1224.
[26]  Q. Zhang, B.L. Xiao, D. Wang, Z.Y. Ma, Formation mechanism of in situ Al3Ti in Al matrix during hot pressing and subsequent friction stir processing, Materials Chemistry and Physics, 130(3) (2011) 1109-1117.
[27]  V.A. Chianeh, H.M. Hosseini, M. Nofar, Micro structural features and mechanical properties of Al-Al3Ti composite fabricated by in-situ powder metallurgy route, Journal of Alloys and Compounds, 473(1-2) (2009) 127-132.
[28]  C.Y. Liu, R. Jing, Q. Wang, B. Zhang, Y.Z. Jia, M.Z. Ma, R.P. Liu, Fabrication of Al/Al3Mg2 composite by vacuum annealing and accumulative roll-bonding process, Materials Science and Engineering: A, 558 (2012) 510-516.
[29]  R. Jafari, B. Eghbali, M. Adhami, Influence of annealing on the microstructure and mechanical properties of Ti/Al and Ti/Al/Nb laminated composites, Materials Chemistry and Physics, 213 (2018) 313-323.
[30]  M. Cao, C.J. Wang, K.K. Deng, K.B. Nie, W. Liang, Y.C. Wu, Effect of interface on mechanical properties and formability of Ti/Al/Ti laminated composites, Journal of Materials Research and Technology, 14 (2021) 1655-1669.
[31]  N. Tsuji, R. Ueji, Y.J. Minamino, Nanoscale crystallographic analysis of ultrafine grained IF steel fabricated by ARB process, Scripta Materialia, 47(2) (2002) 69-76.
[32]  F.J. Humphreys, M. Hatherly, Recrystallization and related annealing phenomena, Elsevier, Oxford, 2004.
Iranian Journal of Materials Forming
Volume 9, Issue 2
April 2022
Pages 14-25

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