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Open AccessArticle

Influence of Low-Frequency Vibration and Modification on Solidification and Mechanical Properties of Al-Si Casting Alloy

1
Electrometallurgical Faculty, The National Metallurgical Academy of Ukraine, 4 Gagarina Ave., Dnipro 49600, Ukraine
2
Zimin Advanced Materials Laboratory, Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 40700, Israel
*
Author to whom correspondence should be addressed.
Academic Editor: Michael Zinigrad
Materials 2017, 10(5), 560; https://doi.org/10.3390/ma10050560
Received: 19 April 2017 / Revised: 11 May 2017 / Accepted: 17 May 2017 / Published: 20 May 2017
(This article belongs to the Special Issue Welding, Joining and Casting of Advanced Materials)
One of the major aims of the modern materials foundry industry is the achievement of advanced mechanical properties of metals, especially of light non-ferrous alloys such as aluminum. Usually an alloying process is applied to obtain the required properties of aluminum alloys. However, the presented work describes an alternative approach through the application of vibration treatment, modification by ultrafine powder and a combination of these two methods. Microstructural studies followed by image analysis revealed the refinement of α-Al grains with an increase in the Si network area around them. As evidence, the improvement of the mechanical properties of Al casting alloy was detected. It was found that the alloys subjected to the vibration treatment displayed an increase in tensile and yield strengths by 20% and 10%, respectively. View Full-Text
Keywords: aluminum casting alloy; permanent mold; vibration treatment; modification; mechanical properties aluminum casting alloy; permanent mold; vibration treatment; modification; mechanical properties
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Selivorstov, V.; Dotsenko, Y.; Borodianskiy, K. Influence of Low-Frequency Vibration and Modification on Solidification and Mechanical Properties of Al-Si Casting Alloy. Materials 2017, 10, 560.

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