Aging precipitation and recrystallization in re-aged copper alloy
来源期刊：中国有色金属学报(英文版)2005年第z3期
论文作者：刘平 雷静果 田保红 郅晓 任凤章
文章页码：181 - 184
Key words：copper alloy； re-aging； precipitation； recrystallization
Abstract: Precipitation and recrystallization behavior of the re-aged Cu-Ag-Cr alloy were investigated. The precipitation occurring before the onset of recrystallization in the pre-aging process makes it possible to gain the efficient hardening in re-aging process and the re-aging strengthening effect with pre-aging at 440℃ for 8h is the most remarkable. Pre-aging at 440℃ for 8h, consequent 60% deformation, and re-aging at 350400℃ can be close to optimal aging treatment. In the re-aging process combined with cold deformation in the studied Cu-Ag-Cr alloy, the in-situ recrystallization can be observed to occur, the precipitates are coarsened or dissolved in the front of grain boundaries following a re-precipitation in the recrystallization area.
