Compressive creep behavior of as-cast and aging-treated Mg–5 wt% Sn alloys |
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| Authors: | Shanghai Wei Yungui Chen Yongbai Tang Hongmei Liu Sufen Xiao Gao Niu Xiaoping Zhang Yuanhua Zhao |
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| Affiliation: | aSchool of Materials Science and Engineering, Sichuan University, Chengdu 610065, China;bDepartment of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand |
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| Abstract: | The microstructure and compressive creep behaviors of as-cast and aging-treated Mg–5 wt% Sn alloys are investigated in this paper. The compressive creep resistance of aging-treated Mg–5 wt% Sn alloy is much better than that of as-cast alloy at the applied stresses from 25 MPa to 35 MPa and the temperatures from 423 K to 473 K, which is mainly due to the dispersive distribution of Mg2Sn phase in the aging-treated Mg–5 wt% Sn alloy. The calculated average values of stress exponent n and activation energy Qc suggest that dislocation cross slip and dislocation climb happen respectively in as-cast and aging-treated Mg–5 wt% Sn alloys during creep. |
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| Keywords: | Mg– Sn binary alloy Aging treatment Compressive creep |
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