Deformation Behavior of Thin Metallic Wires under Tensile and Torsional Loadings.pdf

Deformation Behavior of Thin Metallic Wires under Tensile and Torsional Loadings

Ying Chen

Size effects are widely observed in the mechanics of materials at the micron scale. However, the underlying deformation mechanisms remain ambiguous, particularly in the presence of strain gradients. In this work, combined microstructural investigations and mechanical tests (tension and torsion) were conducted on polycrystalline gold micro wires to determine the influences of specimen size, grain size, strain rate and loading type on the deformation behavior of the wires.

Modeling contrary size effects of tensile- and … Abstract. When Chen et al. (Acta Mater 87:78–85, 2015) investigated the deformation behavior of oligocrystalline gold microwires with varying diameters in both uniaxial tension and torsion, contrary size effects were observed for the different load cases.In accompanying microstructural studies it was found that the microwires of different thicknesses reveal distinctive differences in grain

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Deformation Behavior of Thin Metallic Wires under Tensile and Torsional Loadings.pdf

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