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Fabrication of TiB2/Al composite by melt-SHS process with different content of titanium powder

Published online by Cambridge University Press:  23 May 2017

He Li
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Lihua Chai
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Haijing Wang
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Ziyong Chen*
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Guodong Shi
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Zhilei Xiang
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
Tounan Jin
Affiliation:
College of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100122, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Melt-SHS (self-propagating high-temperature synthesis), based on the SHS process and oxide reaction method, was used for preparation of TiB2/Al composites. The mass ratio of two reactants, Ti powder/TiO2, in initial powder mixture was varied from 0:1 to 1:0. The results showed that the 5 wt% TiB2/Al composites could be successfully produced by a reaction of aluminum powder, TiO2, and B2O3 in Al melt at 950 °C, while the reaction rate was slow. The addition of titanium powder helps to reduce the content of Al2O3 and destroy the coating structure of Al2O3 covered TiB2 particles, which leads to the acceleration of reaction process and improvement of particle concentration. A significant improvement was that TiB2 particles were dispersively distributed when the mass ratio of Ti powder/TiO2 was 2:3. As a result, the 5 wt% TiB2/Al composites fabricated by melt-SHS process with modified reactants ratio showed excellent tensile properties with the ultimate tensile strength as high as 114.24 MPa. Besides, the composite also showed superior ductility.

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Articles
Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Michele Manuel

References

REFERENCES

Zhang, Q., Wu, W.H., Chen, G.Q., Jiang, L.T., and Luan, B.F.: The thermal expansion and mechanical properties of high reinforcement content SiCp/Al composites fabricated by squeeze casting technology. Composites, Part A 34, 10231027 (2003).Google Scholar
Feng, C.F. and Froyen, L.: Microstructures of in situ Al/TiB2 MMCs prepared by acasting route. J. Mater. Sci. 35, 837850 (2000).Google Scholar
Kumar, S., Sarma, V.S., and Murty, B.S.: A statistical analysis on erosion wear behavior of A356 alloy reinforced with in situ formed TiB2 particles. Mater. Sci. Eng., A 476, 333340 (2008).Google Scholar
Liu, Z.W., Rakita, M., Xu, W., Wang, X.M., and Han, Q.Y.: Ultrasound assisted salts-metal reaction for synthesizing TiB2 particles at low temperature. Chem. Eng. J. 263, 317324 (2015).Google Scholar
Gao, Q., Wu, S.S., , S.L., Duan, X.C.H., and An, P.: Preparation of in situ 5 vol% TiB2 particulate reinforced Al–4.5Cu alloy matrix composites assisted by improved mechanical stirring process. Mater. Des. 94, 7986 (2016).Google Scholar
Tjong, S.C. and Ma, Z.Y.: Microstructural and mechanical characteristics of in situ metal matrix composites. Mater. Sci. Eng., R 29, 49113 (2000).Google Scholar
Feng, C.F. and Froyen, L.: On the reaction kinetics of an Al–TiO2–B system for producing in situ Al/(Al2O3 + TiB2) composites. J. Mater. Sci. Lett. 19, 103105 (2000).CrossRefGoogle Scholar
Koc, R. and Hodge, D.B.: Production of TiB2 from a precursor containing carbon coated TiO2 and B4C. J. Mater. Sci. Lett. 19, 667669 (2000).Google Scholar
Li, P.J., Kandalova, E.G., Nikitin, V.I., Luts, A.R., Makarenko, A.G., and Zhang, Y.F.: Effect of fluxes on structure formation of SHS Al–Ti–B grain refiner. Mater. Lett. 57, 36943698 (2003).Google Scholar
Nikitin, V.I., Jie, W.Q., Kandalova, E.G., Makurenko, A.G., and Yong, L.: Preparation of Al–Ti–B grain refiner by SHS technology. Scr. Mater. 42, 561566 (2000).Google Scholar
Yang, Y.F. and Jiang, Q.C.: Effect of TiB2/TiC ratio on the microstructure and mechanical properties of high volume fractions of TiB2/TiC reinforced Fe matrix composite. Int. J. Refract. Met. Hard Mater. 38, 137139 (2003).Google Scholar
Sharifi, E.M., Karimzadeh, F., and Enayati, M.H.: Synthesis of titanium diboride reinforced alumina matrix nanocomposite by mechanochemical reaction of Al–TiO2–B2O3 . J. Alloys Compd. 502, 508512 (2010).Google Scholar
Yeh, C.L. and Su, S.H.: In situ formation of TiAl–TiB2 composite by SHS. J. Alloys Compd. 407, 150156 (2006).Google Scholar
Changizi, A., Kalkanli, A., and Sevinc, N.: Production of in situ aluminum–titanium diboride composite formed by slag–metal reaction. J. Alloys Compd. 509, 237240 (2011).Google Scholar
Zhang, H.L., Han, Y.F., Wang, J., Dai, Y.B., and Sun, B.D.: An ab initio molecular dynamics study on the structural and electronic properties of AlB2, TiB2 and (Al x , Ti(1−x))B2 in Al–Ti–B master alloys. J. Alloys Compd. 585, 529534 (2014).CrossRefGoogle Scholar
Li, X.Z., Bian, X.F., Li, X.J., and Liu, X.F.: Ab initio studies of TiB2 and AlB2 in the Al–Ti–B alloy. Acta Metall. Sin. 37, 235238 (2001).Google Scholar
Lakshmi, S., Lu, L., and Gupta, M.: In situ preparation of TiB2 reinforced Al based composites. J. Mater. Process. Technol. 73, 160166 (1998).Google Scholar
Murty, B.S., Kori, S.A., Venkateswarlu, K., Bhat, R.R., and Chakraborty, M.: Manufacture of Al–Ti–B master alloys by the reaction of complex halide salts with molten aluminum. J. Mater. Process. Technol. 80, 152158 (1999).Google Scholar
Chen, F., Chen, Z.N., Mao, F., Wang, T.M., and Gao, Z.Q.: TiB2 reinforced aluminum based in situ composites fabricated by stir casting. Mater. Sci. Eng., A 625, 357368 (2015).CrossRefGoogle Scholar