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- W3138470926 abstract "The compression creep behavior of 8030 aluminum alloys at intermediate temperature was studied under the deformation temperature of 200∼250 °C and compression stress ranging from 20 to 40 MPa. The apparent stress exponent (na), the true stress exponent (nt) and the activation energy Qc for creep were na = 3.6, nt = 3 and Qc = 145.5 kJ/mol, respectively, indicating that the dislocation viscous glide controlled by lattice self-diffusion was the dominant creep mechanism of the samples at 200 °C-20 MPa. A creep constitutive equation was introduced with the threshold stress σ0 = 5.1 MPa. The microstructure characterization of selected samples was investigated by transmission electron microscopy (TEM), indicating that the sub-grain contours became ambiguous and the dislocations with long curved morphologies were homogeneously distributed within grain inners after creep for 100h." @default.
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- W3138470926 date "2021-05-01" @default.
- W3138470926 modified "2023-10-15" @default.
- W3138470926 title "Creep behavior and microstructural evolution of 8030 aluminum alloys compressed at intermediate temperature" @default.
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- W3138470926 doi "https://doi.org/10.1016/j.jmrt.2021.03.052" @default.
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