Abstract
In this chapter, powder metallurgy process of TiAl nano alloys were performed via mechanical alloying (MA) of Ti-50%Al powder using planetary ball milling equipment. The characteristics of the powder samples including the compositions and microstructure changes were investigated by using X-ray diffraction and field emission scanning electron microscopy (FESEM) coupled with energy-dispersive X-ray spectroscopy (EDX). Estimation by using Scherrer equation indicated that MA performed at different duration up to 15 h have successfully refined the crystallite size from 89.51 nm of Al to 28.29, and 67.6 nm of Ti down to minimum of 17.17 nm. Longer MA duration also exhibits a better effect on the thermal behaviour of Ti-50%Al powders and micro-hardness value which is gradually increased along with MA duration.
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This work was supported by UMP Research Grant under research project UMP RDU 100370.
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Al-Dabbagh, J.B., Tahar, R.M., Ishak, M., Harun, S.A. (2014). Synthesis and Characterization of Nano Ti-50%Al by Mechanical Alloying. In: Öchsner, A., Altenbach, H. (eds) Design and Computation of Modern Engineering Materials. Advanced Structured Materials, vol 54. Springer, Cham. https://doi.org/10.1007/978-3-319-07383-5_23
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DOI: https://doi.org/10.1007/978-3-319-07383-5_23
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