Enhancing mechanical properties of Mg–Sn alloys by combining addition of Ca and Zn》.pdfVIP

Materials Design 83 (2015) 736–744 Contents lists available at ScienceDirect Materials Design journal homepage: www.else /locate/matdes Enhancing mechanical properties of Mg–Sn alloys by combining addition of Ca and Zn Hucheng Pan a, Gaowu Qin a,⇑, Ming Xu a, He Fu a, Yuping Ren a, Fusheng Pan b, Zhengyuan Gao b, Chaoyong Zhao b, Qingshan Yang c, Jia She b, Bo Song d a Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China b National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China c Chongqing Academy of Science and Technology, Chongqing 401123, China d Faculty of Materials and Energy, Southwest University, Chongqing 400715, China a r t i c l e i n f o a b s t r a c t Article history: We developed new wrought Mg–2Sn–1Ca wt.% (TX21) and Mg–2Sn–1Ca–2Zn wt.% (TXZ212) alloys with Received 31 January 2015 high strength and ductility simultaneously, produced by conventional casting, homogenization and indi- Revised 1 June 2015 rect extrusion. A partial dynamically recrystallized microstructure, with the micron-/nano-MgSnCa par- Accepted 3 June 2015 ticles and G.P. zones dispersing, was obtained in TX21 alloy extruded at 260 C (TX21-260). The TX21-260 Available online 19 June 2015 alloy exhibited yield strength (YS) of 269 MPa, ultimate tensile strength (UTS) of 305 MPa, while those of the TX21 alloy extru