Volume 22, Issue 2 (February 2022)
Modares Mechanical Engineering 2022, 22(2): 133-142 |
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Fekri Dolatabad P, Pouyafar V, Meshkabadi R. Investigation of the effect of mechanical milling and alloying parameters for the preparation of Al-SiC composite powder from Al6063 alloy chips. Modares Mechanical Engineering 2022; 22 (2) :133-142
URL: http://mme.modares.ac.ir/article-15-54495-en.html
URL: http://mme.modares.ac.ir/article-15-54495-en.html
1- Faculty of Mechanical Engineering, University of Tabriz
2- Department of Mechanical Engineering, University of Tabriz
3- Faculty of Advanced Technologies, University of Mohaghegh Ardabili ,r_meshkabadi@uma.ac.ir
2- Department of Mechanical Engineering, University of Tabriz
3- Faculty of Advanced Technologies, University of Mohaghegh Ardabili ,
Abstract: (1602 Views)
The defectless microstructure of metal matrix composites, the uniform distribution of particles and their good properties are determined by the production parameters and the base material and reinforcement. In this study, high-energy planetary ball mill was used to fabricate Al6063-SiC composite powder. Aluminum chips were milled with different time and ball to powder weight ratio (BPR) in high energy planetary ball mill. The resulting powder was mechanically alloyed by adding different weight percentages of silicon carbide (SiC) and BPRs at different times. During the milling process under argon atmosphere, stearic acid was used as a process control agent (PCA) to prevent excessive cold welding and agglomeration of the powder. After mechanical alloying, the effect of alloying time, BPRs and weight percentage of silicon carbide, on the obtained composite powder were examined morphologically by particle size analysis (PSA), field emission scanning electron microscope (FESEM), and the fuzzy compounds by X-ray diffraction (XRD) spectroscopy. According to the X-ray diffraction pattern of the samples, grain size was calculated using the Williamson-Hall model. The results of mechanical milling and alloying process have shown that in short milling times with high BPRs composite powder with finer particle size could be achieved. Also, the presence of silicon carbide reinforcing particles accelerates the process of mechanical alloying and further reduces the particle size.
Article Type: Original Research |
Subject:
Analysis & Selection of Materials
Received: 2021/07/31 | Accepted: 2021/09/19 | Published: 2022/01/30
Received: 2021/07/31 | Accepted: 2021/09/19 | Published: 2022/01/30
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