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Effect of yttrium on microstructure and mechanical properties of Mg-8Li-3Al alloy

Zhongyi Niu

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Abstract

Mg-8Li-3Al-xY(x=0.5,1.0,3.0)alloys were prepared with vacuum induction melting method.Effect of yttrium content on microstructure and mechanical properties of the alloys was studied.Results show that,yttrium causes the α(Mg) phase refinement and spheroidization.And Al2Y phase exists in alloy.The tensile strength increases after the yttrium content is w(Y)=0.5%～1%.

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What this paper is about

Mg-8Li-3Al-xY(x=0.5,1.0,3.0)alloys were prepared with vacuum induction melting method.Effect of yttrium content on microstructure and mechanical properties of the alloys was studied.Results show that,yttrium causes the α(Mg) phase refinement and spheroidization.And Al2Y phase exists in alloy.The tensile strength increases after the yttrium content is w(Y)=0.5%～1%.

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Available abstract

Mg-8Li-3Al-xY(x=0.5,1.0,3.0)alloys were prepared with vacuum induction melting method.Effect of yttrium content on microstructure and mechanical properties of the alloys was studied.Results show that,yttrium causes the α(Mg) phase refinement and spheroidization.And Al2Y phase exists in alloy.The tensile strength increases after the yttrium content is w(Y)=0.5%～1%.

Key concepts: Yttrium, Microstructure, Materials science, Alloy, Vacuum induction melting, Metallurgy, Ultimate tensile strength, Phase (matter)

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