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- W2352286277 abstract "Using Al-3.8Cu-1.0Mg-0.75 Si alloy powders as raw material, Al-3.8Cu-1.0Mg-0.75 Si alloys were prepared by sintering with four different types of sintering atmospheres respectively including high purity nitrogen, high purity argon,high purity hydrogen and decomposition of ammonia. The densities, mechanical properties, dimensional changes and microstructures of the sintered samples were compared to explore the optimum of sintering atmosphere. Furthermore, the effect of sintering temperature on the properties of samples sintered under high-purity nitrogen atmosphere was also investigated. The results show that the high purity nitrogen is the most efficacious sintering atmosphere, under which the alloy with a high density of 2.66 g/cm3, hardness of HRB 23, high tensile strength of 205 MPa and the contraction rate of1.65% can be obtained. The alloy sintered in high purity hydrogen has the minimum density, hardness and strength, its tensile strength is 96 MPa, yield strength is 74 MPa, and a large number of pores exist in the microstructure. With increasing sintering temperature, the liquid phase increases, which results in the density and tensile strength increase, the maximum tensile strength of 205 MPa is obtained at 590 ℃ sintering. Over sintering appears at 610 ℃, the alloy has severe element segregation and low properties." @default.
- W2352286277 created "2016-06-24" @default.
- W2352286277 creator A5018627665 @default.
- W2352286277 date "2014-01-01" @default.
- W2352286277 modified "2023-09-23" @default.
- W2352286277 title "Effects of sintering atmosphere and temperature on performance of P/M Al-Cu-Mg-Si alloy" @default.
- W2352286277 hasPublicationYear "2014" @default.
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