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- W2892461488 abstract "A process of heating-cooling combined mold horizontal continuous casting→cold rolling→solid-solution treatment was used to produce Cu-1.7 wt% Be alloy sheet, and the precipitation behavior, microstructure and properties of the Cu-1.7 wt% Be alloy sheet during aging were investigated. The results showed that the phase transformation sequence of the alloy during aging at 325 °C was GP zone→γ″→γ′→γ equilibrium phase. The reasonable aging parameters were aging temperature of 325 °C and aging time of 3 h, and the hardness, tensile strength and yield strength of the aged alloy reached the peak values of 375 HV, 1042 MPa and 778 MPa, which were 172%, 116%, and 255% higher than those of the solid-solution alloy, respectively, and the electrical conductivity was 22.4% IACS. The formation of a large number of dispersed nano-sized γ′ phase was mainly responsible for the high strength of the alloy. A dynamic model of aging precipitation was established and the yield strength of the peak-aged alloy was calculated by the strengthening model. The deviation of the calculated value (797 MPa) and the measured value (778 MPa) was 2.4%, and the strengthening mechanism of the peak-aged alloy was determined as the Orowan bypass mechanism." @default.
- W2892461488 created "2018-10-05" @default.
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- W2892461488 date "2019-01-01" @default.
- W2892461488 modified "2023-10-06" @default.
- W2892461488 title "Precipitation behavior, microstructure and properties of aged Cu-1.7 wt% Be alloy" @default.
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- W2892461488 doi "https://doi.org/10.1016/j.jallcom.2018.09.296" @default.
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