Author/Authors :
Wei، نويسنده , , Shanghai and Chen، نويسنده , , Yungui and Tang، نويسنده , , Yongbai and Liu، نويسنده , , Hongmei and Xiao، نويسنده , , Sufen and Niu، نويسنده , , Gao and Zhang، نويسنده , , Xiaoping and Zhao، نويسنده , , Yuanhua، نويسنده ,
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.
