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Effects of Zn and Al Content on Microstructure and Property of τ-type Mg-Zn-Al Alloy Containing Si

Wen Chun-ling

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Abstract

Effects of Zn and Al content on microstructure and mechanical property of τ-type Mg-Zn-Al alloy containing Si was investigated by means of optical microscopy,X-ray diffract meter and INSTRON tensile machine.The results show that,with increasing Zn and Al content,the volume fraction of τ phase increase,while reverse is for α(Mg);τ phase becomes much more continuous,α(Mg) grains gets finer and Mg2Si particles slightly become larger.Among the alloys studied,the tensile properties of Mg-8Zn-3.2Al-1Si-0.3Mn-0.01P alloy is the best,and the tensile strength at room temperature and 150 ℃ is 233 MP和185 MP respectively.

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Effects of Zn and Al content on microstructure and mechanical property of τ-type Mg-Zn-Al alloy containing Si was investigated by means of optical microscopy,X-ray diffract meter and INSTRON tensile machine.The results show that,with increasing Zn and Al content,the volume fraction of τ phase increase,while reverse is for α(Mg);τ phase becomes much more continuous,α(Mg) grains gets finer and Mg2Si particles slightly become larger.Among the alloys studied,the tensile properties of Mg-8Zn-3.2Al-1Si-0.3Mn-0.01P alloy is the best,and the tensile strength at room temperature and 150 ℃ is 233 MP和185 MP respectively.

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Available abstract

Effects of Zn and Al content on microstructure and mechanical property of τ-type Mg-Zn-Al alloy containing Si was investigated by means of optical microscopy,X-ray diffract meter and INSTRON tensile machine.The results show that,with increasing Zn and Al content,the volume fraction of τ phase increase,while reverse is for α(Mg);τ phase becomes much more continuous,α(Mg) grains gets finer and Mg2Si particles slightly become larger.Among the alloys studied,the tensile properties of Mg-8Zn-3.2Al-1Si-0.3Mn-0.01P alloy is the best,and the tensile strength at room temperature and 150 ℃ is 233 MP和185 MP respectively.

Key concepts: Alloy, Microstructure, Ultimate tensile strength, Materials science, Volume fraction, Metallurgy, Phase (matter), Optical microscope

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Effects of Zn and Al Content on Microstructure and Property of τ-type Mg-Zn-Al Alloy Containing Si — Research Paper | ScholarLens