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Original Research
Online Published: 23 Nov 2020
 


EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan.


Abstract
The effect of mechanical vibration during the solidification of hypereutectic Al-Si (Al-20% wt Si) alloy on the microstructure and mechanical properties was investigated. The specimen with a specification of 25 mm in diameter and 65 mm long were solidified in the frequency range of 0 to 6.3 Hz so as to examine the effect of the vibration on the grain structure, tensile strength, hardness value and impact energy. In comparison with the grains formed in the as-cast state without vibration, the morphology of the grains changes from predominantly dendritic to a more globular structure as the intensity of vibration increases. The test result shows that there is an improvement in the mechanical properties of the samples within the frequency threshold of 1.5 and 4.2 Hz.

Key words: Mould, vibration, aluminum-silicon


 
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How to Cite this Article
Pubmed Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. NJE. 2020; 27(1): 59-67.

Web Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. https://www.njeabu.com.ng/?mno=9607 [Access: September 12, 2024].

AMA (American Medical Association) Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. NJE. 2020; 27(1): 59-67.


Vancouver/ICMJE Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. NJE. (2020), [cited September 12, 2024]; 27(1): 59-67.


Harvard Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan (2020) EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. NJE, 27 (1), 59-67.


Turabian Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. 2020. EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. Nigerian Journal of Engineering, 27 (1), 59-67.


Chicago Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. "EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY." Nigerian Journal of Engineering 27 (2020), 59-67.


MLA (The Modern Language Association) Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan. "EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY." Nigerian Journal of Engineering 27.1 (2020), 59-67. Print.


APA (American Psychological Association) Style

M. A. Adamu, D. S. Yawas, T. Ause, U. Hassan (2020) EFFECTS OF MOULD VIBRATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A HYPEREUTECTIC AL-SI ALLOY. Nigerian Journal of Engineering, 27 (1), 59-67.


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