湖南大学学报（自然科学版）Issue(12)：40-46,7.
挤压对 Mg-Zn-Sn-Al 合金力学性能和腐蚀行为的影响
Effect of Extrusion on Mechanical Properties and Corrosion Behavior of Mg-Zn-Sn-Al Alloy
摘要
Abstract
The microstructure,mechanical properties and corrosive behavior of the 3.5wt%NaCl solu-tion of the as-cast and the as-extruded Mg-4.5Zn-4.5Sn-2Al alloy were investigated.The results show that the average grain size of the as-cast alloy is 183 μm and that of the extruded alloy is 9 μm.Compared with as-cast alloy,the tensile strength of the extruded alloy increases from 209 MPa to 354 MPa,the yield strength increases from 157 MPa to 216 MPa,and the elongation reaches about 19.6%.The tensile frac-ture of the extruded alloys exhibits ductile fracture.Static immersion corrosion tests and electrochemical measurements show that the corrosion resistance of the extruded alloy is obviously inferior to that of as-cast alloy.关键词
镁合金/挤压/力学性能/腐蚀Key words
magnesium alloy/extrusion/mechanical properties/corrosion分类
矿业与冶金引用本文复制引用
陈吉华,邰辉辉,严红革,田翔宇,尹航,周雄鹏,马昭婕..挤压对 Mg-Zn-Sn-Al 合金力学性能和腐蚀行为的影响[J].湖南大学学报（自然科学版）,2015,(12):40-46,7.基金项目
国家自然科学基金资助项目（51274092），National Natural Science Foundation of China（51274092）；教育部博士点基金资助项目（20120161110040）；湖南大学青年教师成长计划项目 （）
