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Investigators from MUT University of Technology Report New Data on Materials Research

February 11, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Materials Research have been published. According to news originating from Tehran, Iran, by VerticalNews correspondents, research stated, "In this paper, tribological behavior and mechanical properties of nanostructured Al2024 alloy produced by mechanical milling and hot extrusion were investigated before and after adding B4C particles. Mechanical milling was used to synthesize the nanostructured Al2024 in attrition mill under argon atmosphere up to 50 h. A similar process was used to produce Al2024-5 wt.%B4C composite powder."

Our news journalists obtained a quote from the research from the MUT University of Technology, "The milled powders were formed by hot pressing and then were exposed to hot extrusion in 750 degrees C with extrusion ratio of 10:1. To study the microstructure of milled powders and hot extruded samples, optical microscopy, transmission electron microscopy and scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectrometer (EDS) were used. The mechanical properties of samples were also compared together using tension, compression and hardness tests. The wear properties of samples were studied using pin-on-disk apparatus under a 20 N load. The results show that mechanical milling decreases the size of aluminum matrix grains to less than 100 nm."

According to the news editors, the research concluded: "The results of mechanical and wear tests also indicate that mechanical milling and adding B4C particles increase strength, hardness and wear resistance of Al2024 and decrease its ductility remarkably."

For more information on this research see: Dry sliding tribological behavior and mechanical properties of Al2024-5 wt.%B4C nanocomposite produced by mechanical milling and hot extrusion. Materials & Design, 2014;55():471-481. Materials & Design can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Materials & Design -

The news correspondents report that additional information may be obtained from A. Abdollahi, MUT Univ Technol, Fac Mat & Mfg Proc, Tehran, Iran. Additional authors for this research include A. Alizadeh and H.R. Baharvandi.

Keywords for this news article include: Iran, Asia, Tehran, Materials Research

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Source: Journal of Technology

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