The Effect of Ball Size on Hardness of Mechanically Alloyed Al-10wt.%Ti Powders

Adolf Asih Supriyanto, Widodo Widodo, Ade Irvan Tauvana, Syafrizal Syafrizal


Article Viewers

Abstract viewed: 261 times
PDF viewed: 176 times


Particle size and hardness of Al-10%wt.Ti powders due to the influence of ball diameter have been carried out using mechanical alloying techniques. The milling device used consisted of a Fritsch Pulverisette-5 planetary type ball mill with the rotational speed of about 360 rpm and balls size of 10, 15 and 20 mm. The materials used are stearic acid which was used as a process control agent, aluminum and titanium powders. A mixture of aluminum and titanium powders has the composition of Al-10wt.%Ti. The Al-10wt.%Ti powders, stearic acid and stainless-steel balls were added to the Fritsch Pulverisette-5 planetary in the argon gas environment. The weight ratio of stainless steel balls to the Al-10wt.%Ti powder was 20 : 1. The mixing time process was carried out for 5, 10, 15, 20 and 30 hours, respectively. Changes in phase compositions of these Al-Ti powders under different ball mill sizes were examined by XRD, and the optimum experimental parameter was obtained: the ball mill size was 20 mm. It was found that from the diffraction patterns of the Al-10wt.%Ti powders, the peaks of titanium begin to disappear with the increasing of the milling time, which indicates the increasing degrees of alloying of titanium atoms in the aluminum matrix. The microhardness test results showed that the hardness increases with increasing ball size.


ball size; particle size; hardness

Full Text:



H. R. Khan and M. A. Siddiqui, “Effect of Milling Time on Al-Fe-Cr-20 Wt . % Al 2 O 3 composite Prepared Through Ball Milling,” J. Eng. Res. Appl., vol. 4, no. 7, pp. 183–188, 2014.

A. H. Seikh, M. Baig, and H. R. Ammar, “Corrosion behavior of nanostructure al-fe alloy processed by mechanical alloying and high frequency induction heat sintering,” Int. J. Electrochem. Sci., vol. 10, no. 4, pp. 3054–3064, 2015.

J. Liu, C. Suryanarayana, D. Ghosh, G. Subhash, and L. An, “Synthesis of Mg-Al2O3 nanocomposites by mechanical alloying,” J. Alloys Compd., vol. 563, pp. 165–170, 2013, doi: 10.1016/j.jallcom.2013.01.113.

M. Khaloobagheri and S. A. Barfjan, “The Effect of Milling Time on Properties and Microstructure of Cu-Yttria Stabilized Zirconia Composites Fabricated by Powder Metallurgy,” vol. 1, no. 2, pp. 78–84, 2015.

X. W. Li, H. F. Sun, W. Bin Fang, and Y. F. Ding, “Structure and morphology of Ti-Al composite powders treated by mechanical alloying,” Trans. Nonferrous Met. Soc. China (English Ed., vol. 21, no. SUPPL. 2, pp. s338–s341, 2011, doi: 10.1016/S1003-6326(11)61602-6.

N. Forouzanmehr, F. Karimzadeh, and M. H. Enayati, “Study on solid-state reactions of nanocrystalline TiAl synthesized by mechanical alloying,” J. Alloys Compd., vol. 471, no. 1–2, pp. 93–97, 2009, doi: 10.1016/j.jallcom.2008.03.121.

B. Gabbitas, P. Cao, S. Raynova, and D. Zhang, “Microstructural evolution during mechanical milling of Ti/Al powder mixture and production of intermetallic TiAl cathode target,” J. Mater. Sci., vol. 47, no. 3, pp. 1234–1243, 2012, doi: 10.1007/s10853-011-5886-9.

M. R. Farhang, A. R. Kamali, and M. Nazarian-Samani, “Effects of mechanical alloying on the characteristics of a nanocrystalline Ti-50 at.%Al during hot pressing consolidation,” Mater. Sci. Eng. B Solid-State Mater. Adv. Technol., vol. 168, no. 1, pp. 136–141, 2010, doi: 10.1016/j.mseb.2009.10.032.

J. B. Al-Dabbagh, R. M. Tahar, S. A. Harun, and M. Ishak, “Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment,” Int. J. Nanoelectron. Mater., vol. 8, no. 1, pp. 23–32, 2015.

A. A. Supriyanto and A. R. Daud, “Effect of milling time on microstructure of mechanically alloyed Al-Ti powders,” AIP Conf. Proc., vol. 1202, pp. 117–121, 2009, doi: 10.1063/1.3295580.


  • There are currently no refbacks.

Share This Article

Copyright (c) 2020 International Journal of Advanced Technology in Mechanical, Mechatronics and Materials

IJATEC is indexed by the following abstracting and indexing services:

International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC)
Institute for Research on Innovation and Industrial System (IRIS)
Jl.Raya Mustika Jaya No 88, Mustika Jaya, Bekasi Kota - 17158
Telp./Fax: +62 815-7499-5509
p-ISSN: 2720-8990
e-ISSN: 2720-9008

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.