Experimental Investigation of Nano-structured Aluminum Production Using Accumulative channel-die compression bonding (ACCB)

Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

مقاله 9، دوره 9، شماره 4 - شماره پیاپی 28، فروردین 2017، صفحه 673-686   

نوع مقاله: Persian

نویسندگان

Mohssen Motaharinezhad^{* 1}؛ Saeed Shahraki²

¹Islamic Azad University, South Tehran Branch, Young Researchers and Elite Club, Tehran, Iran.

²Faculty of Mechanical Engineering, Faculty of Engineering, University of Zabol

چکیده

In this paper, the Accumulative Channel-die Compression Bounding (ACCB) method is investigated as a new method of severe plastic deformation to produce Nano-crystalline bulk metals on the basis of pressing in a channel mold. Aluminum as One of the most usable metal in industry is processed using this method. Analyzing the processed samples show that after four passes of ACCB method, the ultimate strength of samples reaches to 120 from 60 Mpa. The grain sizes of samples reaches to 627 nm from 8-6µm in annealed phase after four passes of ACCB method. Also, the vicker's hardness of samples reaches to 51.8 from 20 HV after four passes. These changes consist of the increasing the hardness and strength of aluminum sample and achieving to the high ratio of strength to weight of sample can help us to better use this materials to fabricate less weight structures for using in automotive and airplane industry.

کلیدواژه‌ها

Nanostructure؛ Strength؛ strain؛ Channel mold؛ Aluminum 1100

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