Influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum alloy
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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-free zones at grain and sub-grain boundaries. As a result, the tensile properties of 2519A aluminum alloy have been significantly improved.
Key wordspre-aging deformation precipitation hardening tensile properties aluminum alloys
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- FISHER J, JAMES J. Aluminum alloy 2519 in military vehicles [J]. Advance Materials and Processes, 2002, 160(9): 43–46.Google Scholar
- PATON N E, SOMMER A W. Influence of thermomechanical processing treatments on properties of aluminum alloys [C]// Proceedings of the 3rd International Conference on Strength of Metals and Alloys. Cambridge, UK, 1973, 1(2): 101–105.Google Scholar
- DOHERTY R D, MARTIN J W. The effect of dispersed second phase on the recrystallization of aluminum-copper alloys [J]. The Institute of Metals, 1962, 63(91): 332–338.Google Scholar