Influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum al

• 作 者: WANG Hui-min XIA Chang-qing LEI Pan WANG Zhi-wei
• 机 构: School of Materials Science and Engineering, Central South University, Changsha 410083, China
• 出 处: 中南大学学报（英文版）
• 发表日期: 2011年5期
• 关键词: pre-aging deformation precipitation hardening tensile properties aluminum alloys

The influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum alloy was investigated by means of microhardness test,tensile test,optical microscopy (OM) and transmission electron microscopy (TEM).The results show that 50％ cold rolling deformation prior to aging is beneficial since it promotes a more homogeneous distribution of the precipitation phase and reduces the number of precipitation phase on the grain boundaries,and thus shrinks the total volume of precipitation-flee zones at grain and sub-grain boundaries.As a result,the tensile properties of 2519A aluminum alloy have been significantly improved.