摘要
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.
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.
出处
《中国有色金属学会会刊：英文版》
CSCD
2005年第S3期181-184,共4页
Transactions of Nonferrous Metals Society of China
基金
Project(2002AA331112)supportedbytheHitechResearchandDevelopmentProgramofChina
project(052100120)supportedbytheInnovationFundforOutstandingScholarofHenanProvince
project(0511053300)supportedbyNaturalScienceFoundationofHenanProvince
