Skip to main content Accessibility help
×
Home

Synthesis of submicrometer-sized TiC particles in aluminum melt at low melting temperature

  • Zhiwei Liu (a1), Xiaoming Wang (a1), Qingyou Han (a1) and Jianguo Li (a2)

Abstract

This research discussed how to synthesize submicrometer-sized TiC particulate reinforcement in the molten aluminum melt at low temperature via combustion synthesis by using in situ casting technique. A high temperature preheating treatment of Al–Ti–C pellets was carried out, by which the thermal explosion reaction of the pellets could take place in the pure aluminum melt at 750 °C. The synthesizing temperature of TiC particles was reduced by at least 150 °C compared with the conventional methods. In situ formed TiC particles were spherical in shape and were smaller than 1 µm in size due to the low melting temperature. The emergence of liquid aluminum phase led to the generation and accumulation of plenty of heat in the pellet in a short time due to the reactive diffusion of Al(l)–Ti(s). The formation mechanism of the submicrometer-sized TiC particles in the molten aluminum at low temperature was discussed in this research.

Copyright

Corresponding author

a)Address all correspondence to these authors. e-mail: lzw_6260@163.com
b)e-mail: hanq@purdue.edu

References

Hide All
1.Sun, Y.F., Lyu, Y.Z., Jiang, A.R., and Zhao, J.Y.: Fabrication and characterization of aluminum matrix fly ash cenosphere composites using different stir casting routes. J. Mater. Res. 29, 260266 (2014).
2.Sheibani, S. and Najafabadi, F.M.: In situ fabrication of Al–TiC metal matrix composites by reactive slag process. Mater. Des. 28, 23732378 (2007).
3.Kaftelen, H., Ünlü, N., Göller, G., Öveçoğlu, M.L., and Henein, H.: Comparative processing-structure–property studies of Al–Cu matrix composites reinforced with TiC particulates. Composites, Part A 42, 812824 (2011).
4.Li, P.J., Kandalova, E.G., and Nikitin, V.I.: Preparation of Al-TiC composites by self-propagating high-temperature synthesis. Scr. Mater. 49, 699703 (2003).
5.Yu, Z.Y., Zhao, N.Q., Liu, E.Z., Shi, C.S., Du, X.W., and Wang, J.: Fabrication of aluminum matrix composites with enhanced mechanical properties reinforced by in situ generated MgAl2O4 whiskers. Composites Part A 43, 631634 (2012).
6.Li, P.J., Kandalova, E.G., and Nikitin, V.I.: In situ synthesis of Al–TiC in aluminum melt. Mater. Lett. 59, 25452548 (2005).
7.Liang, Y.F., Zhou, J.E., and Dong, S.Q.: Microstructure and tensile properties of in situ TiCp/Al–4.5 wt.% Cu composites obtained by direct reaction synthesis. Mater. Sci. Eng. A 527, 79557960 (2010).
8.Anandakrishnan, V., Baskaran, S., and Sathish, S.: Synthesis and forming behavior of in-situ AA 7075-TiC composites. Adv. Mater. Res. 651, 251256 (2013).
9.Hou, Y.F., Xia, T.D., and Zhao, W.J.: Effect of molten aluminum temperature on microstructure of Al-Ti-C master alloys prepared by thermal explosion synthesis. J. Mater. Eng. 6, 4447 (2008).
10.Liu, Z.W., Wang, X.M., Han, Q.Y., and Li, J.G.: Effects of the addition of Ti powders on the microstructure and mechanical properties of A356 alloy. Powder Technol. 253, 751756 (2014).
11.Ye, D.L. and Hu, J.H.: Handbook of Thermodynamic Data of Inorganic Compounds, 2nd ed. (Metallurgical Industry Press, Beijing, 2002).
12.Wang, H.Y., Jiang, Q.C., Li, X.L., and Wang, J.G.. In situ synthesis of TiC/Mg composites in molten magnesium. Scr. Mater. 48, 13491354 (2003).
13.Xu, L., Cui, Y.Y., Hao, L.Y., and Yang, R.: Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples. Mater. Sci. Eng. A 435436, 638647 (2006).
14.Liu, Z.W., Rakita, M., Han, Q.Y., and Li, J.G.: A developed method for fabricating in-situ TiCp/Mg composites by using quick preheating treatment and ultrasonic vibration. Metall. Mater. Trans. A 43, 21162124 (2012).
15.Krafcsik, I., Gyulai, J., Palmstrom, C.J., and Mayer, J.W.: Influence of Cu as an impurity in Al/Ti and Al/W thin-film reactions. Appl. Phys. Lett. 43, 10151017 (1983).
16.Kral, J., Ferdinandy, M., and Liska, D.: Formation of TiAl3 layer on titanium alloys. Mater. Sci. Eng. A 140, 479485 (1991).
17.Du, Y., Chang, Y.A., Huang, B.Y., Gong, W.P., Jin, Z.P., Xu, H.H., Yuan, Z.H., Liu, Y., He, Y.H., and Xie, F.Y.: Diffusion coefficients of some solutes in fcc and liquid Al: Critical evaluation and correlation. Mater. Sci. Eng. A 363, 140151 (2003).

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed