Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium
A356 is widely used for the casting of high strength components in automotive, aerospace and other industrial applications. This is due to its high achievable strength, castability, light weight, good thermal and electrical conductivity. However, the as-cast A356 exhibits relative poor mechanical...
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my-inti-eprints.13872020-05-14T07:46:00Z http://eprints.intimal.edu.my/1387/ Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium A, Masita Yeo, W.H. Saw, L.H. Lim, Y.P Lee, J.W Ng, T.C. Q Science (General) QC Physics A356 is widely used for the casting of high strength components in automotive, aerospace and other industrial applications. This is due to its high achievable strength, castability, light weight, good thermal and electrical conductivity. However, the as-cast A356 exhibits relative poor mechanical properties due to the presence of coarse acicular eutectic silicon morphology. In this study, Sc-modified-A356 and the effect of heat treatment have been studied and compared with unmodified A356. Various amounts of Sc ranging from 0.2 wt% to 0.6 wt% were added into the mixture of A356 aluminium alloy and the specimens were produced by using gravity die-casting. Next, the ultimate tensile strength, Vickers hardness and fatigue behaviour of the cast samples are examined. The results revealed that by adding 0.4 wt.% of Sc, the heat treated sample is able to achieve ultimate tensile strength of above 300 MPa and Vicker’s hardness of 118 HV. Furthermore, the fatigue properties of the 0.4 wt% Sc-A356 with T6 heat treatment was found to be improved as compared to the unmodified A365 samples. IOP Publishing 2019 Article PeerReviewed A, Masita and Yeo, W.H. and Saw, L.H. and Lim, Y.P and Lee, J.W and Ng, T.C. (2019) Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium. IOP Conference Series: Earth and Environmental Science, 268. ISSN 1755-1315 https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012059 |
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Q Science (General) QC Physics A, Masita Yeo, W.H. Saw, L.H. Lim, Y.P Lee, J.W Ng, T.C. Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| description |
A356 is widely used for the casting of high strength components in automotive,
aerospace and other industrial applications. This is due to its high achievable strength, castability,
light weight, good thermal and electrical conductivity. However, the as-cast A356 exhibits
relative poor mechanical properties due to the presence of coarse acicular eutectic silicon
morphology. In this study, Sc-modified-A356 and the effect of heat treatment have been studied
and compared with unmodified A356. Various amounts of Sc ranging from 0.2 wt% to 0.6 wt%
were added into the mixture of A356 aluminium alloy and the specimens were produced by using
gravity die-casting. Next, the ultimate tensile strength, Vickers hardness and fatigue behaviour
of the cast samples are examined. The results revealed that by adding 0.4 wt.% of Sc, the heat
treated sample is able to achieve ultimate tensile strength of above 300 MPa and Vicker’s
hardness of 118 HV. Furthermore, the fatigue properties of the 0.4 wt% Sc-A356 with T6 heat
treatment was found to be improved as compared to the unmodified A365 samples. |
| format |
Article |
| author |
A, Masita Yeo, W.H. Saw, L.H. Lim, Y.P Lee, J.W Ng, T.C. |
| author_facet |
A, Masita Yeo, W.H. Saw, L.H. Lim, Y.P Lee, J.W Ng, T.C. |
| author_sort |
A, Masita |
| title |
Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| title_short |
Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| title_full |
Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| title_fullStr |
Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| title_full_unstemmed |
Mechanical and Fatigue Properties of Gravity Die-Cast A356 Aluminium Alloy with Addition of Scandium |
| title_sort |
mechanical and fatigue properties of gravity die-cast a356 aluminium alloy with addition of scandium |
| publisher |
IOP Publishing |
| publishDate |
2019 |
| url |
http://eprints.intimal.edu.my/1387/ https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012059 |
| _version_ |
1669010859061411840 |
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13.211869 |