Compressive creep behavior of Mg-Sn binary alloy |
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Authors: | WEI Shang-hai CHEN Yun-gui TANG Yong-bai LIU Ming XIAO Su-fen ZHANG Xiao-ping ZHAO Yuan-hua School of Materials Science Engineering Sichuan University Chengdu China |
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Affiliation: | WEI Shang-hai,CHEN Yun-gui,TANG Yong-bai,LIU Ming,XIAO Su-fen,ZHANG Xiao-ping,ZHAO Yuan-hua School of Materials Science , Engineering,Sichuan University,Chengdu 610065,China |
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Abstract: | Mg-Sn based alloy is one of the potential alloys for application at elevated temperature. The compressive creep behavior of ageing-treated Mg-xSn (x=3%, 5%) alloys was investigated at the temperatures of 423 and 473 K and the stresses from 25 MPa to 35 MPa. When the tin content varies, the ageing-treated Mg-xSn alloys show quite different creep resistance, which are mainly attributed to the size and distribution of Mg2Sn phases in the ageing-treated Mg-xSn alloys. The calculated value of stress exponent,n=6.3, suggests that the compressive creep behavior of the ageing-treated Mg-5%Sn alloy is controlled by dislocation creep at the temperature of 473 K and the stresses from 25 MPa to 35 MPa. |
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Keywords: | Mg alloy aging treatment creep deformation stress exponent |
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