The influence of process parameters on the formation of Al coating on steel by planetary ball-milling

Year 2018, Volume: 19 Issue: 3, 748 - 755, 01.09.2018

Fatih Erdemir

Abstract

The effect of milling time, ball/powder ratio, and milling speed of planetary ball-mıllıng process on coating thickness was investigated by central composite design. The interaction effects of the factors were determined through Analysis of Variance (ANOVA). The regression model was developed for evaluatıng the coating thickness. A Scanning Electron Microscopy (SEM) was used for measurıng the coating thickness. The results show that the ball/powder ratio was the most significant factor to maximize the coating thickness. The maximum coating thickness of 164 µm was succeed at a milling speed of 400 rpm, ball-to-powder ratio of 15:1 and milling time of 8 h. Although minimum coating thickness of 7 µm was attained at a milling speed of 200 rpm and ball/powder ratio of 5:1.

Keywords

milling, coating, response surface methodology milling

References

• [1] Romankov S, Sha W, Kaloshkin SD, Kaevitser K. Fabrication of Ti–Al coatings by mechanical alloying method. Surf. Coat. Technol, 2006; 201: 3235–3245.
• [2] Canakci A, Erdemir F, Varol T, Dalmış R, Ozkaya S. Effects of a new pre-milling coating process on the formation and properties of a Fe–Al intermetallic coating. Powder Technol. 2014; 268: 110–117.
• [3Yazdani A, Zakeri, A. An insight into formation of nanostructured coatings on metallic substrates by planetary ball milling, Powder Technol. 215;278: 196–203. [4] Komarov S, Romankov E, Hayashi N, Kasai E. Nanostructured coatings produced by a novel ultrasonic-assisted method: Coating characterisation and formation mechanism. Surf. Coat. Technol. 2010;204:2215–2222.
• [5]Shahzad SV, Zadorozhnyy VY, Pavlov MD, Semenov DV, Kaloshkin SD. Study and development of NiAl intermetallic coating on hypo-eutectoid steel using highly activated composite granules of the Ni-Al system. Int. J. Mater. Res. 2018 ; 109: 63-67.
• [6] Bafandeh MR, Omidi Ab, Irankhah Ac. In situ coating of low carbon steel with Ni-Al-Fe powder mixture via mechanical alloying. Surf. Coat. Technol. 2017; 268-273.
• [7] Gupta G, Mondal K, Balasubramaniam R. In situ nanocrystalline Fe–Si coating by mechanical alloying. J. Alloy Compd. 2009; 482: 118–122.
• [8] Suryanarayana. Mechanical alloying and milling. Prog. Mater. Sci. 2001;46: 1–184.