Abstract:The effect of heat treatment in an electric field on micro-plastic deformation characteristics of 2024 Al alloy was investigated. The mechanism of aging in an electric field affecting the micro-plastic deformation behavior was preliminarily discussed. The results show that the resistance to micro-plastic deformation of the alloy can be greatly increased by aging in an electric field. Aging temperature, aging time and electric field strength are selected by adopting the orthogonal design method and the optimum technological parameters are obtained.

Key words: 2024 Al alloy; aging; electric field; resistance to micro-plastic deformation