The Effect of Sr Modification on the Microstructure and Properties of Mg2Si Reinforced Near-Eutectic Al-Si Alloy
2013 ◽
Vol 750-752
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pp. 638-641
Keyword(s):
Mg Alloy
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The effect of Al-10Sr master alloy modifier with different content on the microstructure and properties of as-cast Al-12.6Si-0.35 Mg alloy was investigated. The results show that, eutectic silicon varies from original needle and flake to fibrous shape; The shape, size, and quantity of α -Al all changed; When Sr content is 0.023%, the modification effect is most ideal, α -Al shows the highest quantity and smallest size. Meanwhile, the tensile strength and elongation of the alloy reach to the optimum values of 248.2 MPa and 7.2% respectively. These two values are 1.34 and 2.77 times higher than the 185 MPa and 2.6% before modification respectively.
2013 ◽
Vol 750-752
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pp. 687-690
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2013 ◽
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pp. 339-344
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pp. 40-43
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Vol 15
(1)
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pp. 105-108
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Vol 898
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pp. 131-136
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pp. 454-459
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Vol 476-478
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pp. 114-117
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