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Comparing the Effects of Squeeze Casting on the Mechanical Properties of Selected Aluminum Alloys

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2017

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
This study has detailed the changes in mechanical properties of selected aluminium alloys when produced using the method of squeeze casting as compared with conventional gravity castings. The alloys that were studied are: Al-12wt.%Si, Al-12wt.%Si with sodium modifier, Al-1.3wt.%Cu-5wt.%Si-0.5wt.%Mg and Al-4.5wt.%Cu. The squeeze pressure was varied over a range of 50 MPa. The results and measurements show a marked improvement in ultimate tensile strength, ductility and hardness for samples produced by the method of squeeze casting as compared to the gravity cast samples. For instance, at 50 MPa, the ultimate tensile strength of the Al-4.5wt.%Cu alloy was found to be 60% higher than that of the same alloy produced by the conventional procedure of gravity casting. The trend was found to be similar for the other mechanical properties and alloys studied and these have been presented in the work. Further, material properties were seen to improve in all the alloys studied as cast pressure increased with the optimal pressure being in the neighbourhood of 50 MPa.
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REFERENCES

References: 

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0
1
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0
20
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60
Elongation%
Squeeze Presure (MPa)
Al-12%Si
unmodified
Al-12%Si Na
modified
Al-1.3%Cu-
5%Si-0.5Mg
Al-4.5%Cu
65
70
75
80
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90
95
0
10
20
30
40
50
60
Rockwell Hardness
Squeeze Presure (MPa)
Al-12%Si
unmodified
Al-12%Si Na
modified
Al-1.3%Cu-5%Si-
0.5% Mg
Al-4.5%Cu
International Journal of Science and Engineering Investigations, Volume 6, Issue 63, April 2017 46
www.IJSEI.com Paper ID: 66317-06
ISSN: 2251-8843
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