Anisotropic plastic deformation behavior of as-extruded ZK60 magnesium alloy at room temperature

作者：Lin JinBao^*; Peng LiMing; Wang QuDong; Hans, J R; Ding WenJiang

来源：Science China Technological Sciences, 2009, 52(1): 161-165.

DOI：10.1007/s11431-008-0280-9

• anisotropic
• plastic deformation behavior
• ZK60 Mg alloy
• texture
• mechanical property

The anisotropic plastic deformation behavior of as-extruded ZK60 magnesium alloy at room temperature (RT) was investigated by compressive and tensile testing in different directions, i.e. the loading axis oriented at 0 degrees, 45 degrees and 90 degrees to the extrusion direction. The relationship between texture and plastic deformation behavior were examined. The results show that the extruded ZK60 alloy exhibits a strong ring fiber texture. The mechanical properties are strongly orientation dependent. In tension testing, the 0 degrees specimen exhibited higher yield strength and lower elongation. In compression testing, however, ZK60 alloy exhibited almost the same yield strength in three directions. The anisotropic plastic deformation behavior is due to strong fiber texture and the lower symmetry of the hexagonal close packed (hcp) structure of ZK60 alloy. The correlation between texture and mechanical behaviour offers the possibility to improve the mechanical properties of magnesium alloy by optimization of the material production process.

• 出版日期2009-1
• 单位上海交通大学; 太原学院