Microstructures and mechanical properties of as-extruded Mg–5Sn–1Zn–xAl(x=1, 3 and 5) alloys

• 作 者: Jia She Fusheng Pan Huanhuan Hu Hucheng Pan Aitao Tang Kai Song Zhengwen Yu Suqin Luo
• 机 构: College of Materials Science and Engineering, Chongqing University,National Engineering Research Cen
• 出 处: Progress in Natural Science:Materials International
• 发表日期: 2015年04期
• 关键词: extrusion texture ultimate elongation alloys and 5 x=1 xAl tensile attributed

As-extruded Mg–5Sn–1Zn–xAl alloys(x=1, 3, and 5) were fabricated by hot extrusion. The experimental results revealed that the yield strength of alloys initially decreased and then increased with the increase of Al content. These changes were mainly attributed to the difference in crystallographic texture and volume fractions of second phases. The ultimate tensile strength, yield strength, and elongation of the alloys were greater than 310 MPa, 227 MPa, and 11%, respectively. The strain hardening ability of the alloys was also discussed.

The experimental results revealed the yield strength of alloys initially decreased and then increased with the increase of Al content. These As-extruded Mg-5Sn-1Zn-xAl alloys (x = 1, 3, and 5) were fabricated by hot extrusion. changes were mainly attributed to the difference in crystallographic texture and volume fractions of second phases. The ultimate tensile strength, yield strength, and elongation of the alloys were greater than 310 MPa, 227 MPa, and 11%, respectively. the alloys was also discussed.