Abstract
It is important to manufacture micromachine parts and simulate the deformation behavior of bulk amorphous alloys in a superccoled liquid region. For these purposes, a correct constitutive model that can reproduce viscosity results is essential for good predictive capability. In this paper, finite element analyses of nonlinear behaviour in bulk metallic glasses during die compression in the supercooled liquid region have been carried out based on the fictive stress model in conjunction with the Maxwell viscoelastic model. The friction effect between the work piece and the die played an important role in inhomogeneous deformation.
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Kim, H.S. Fictive stress model based finite element analysis for bulk metallic glasses at an elevated temperature. Met. Mater. Int. 10, 461–466 (2004). https://doi.org/10.1007/BF03027349
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DOI: https://doi.org/10.1007/BF03027349