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Title: Microstructure evolution and constitutive modelling of microsize structures
Authors: Liu, Lin.
Loh, Ngiap Hiang.
Tay, Bee Yen.
Keywords: DRNTU::Engineering::Mechanical engineering
Issue Date: 2012
Source: Liu, L., Loh, N. H., & Tay, B. Y. (2012). Microstructure evolution and constitutive modelling of microsize structures. International journal of materials and product technology, 45(1-4), 64-73.
Series/Report no.: International journal of materials and product technology
Abstract: Given the small dimensions to be replicated for micro components, knowledge into their microstructure evolution is crucial for dimensional and property control. Constitutive model is useful to predict the final shape of the sintered micro components. In this paper, the microstructure evolution of 316L stainless steel microsize structures of Φ60 µm that was fabricated by micro metal injection moulding was examined via SEM and XRD. A constitutive model is established to simulate densification of the microsize structures and the contribution of lattice diffusion (Nabarro-Herring creep) is considered. The predictive capability of the model is verified by comparing the theoretical calculations with the experimental results. The influences of boundary energy on modelling results are discussed. It is found that the modelling results agree reasonably well with the experimental results.
DOI: 10.1504/IJMPT.2012.051321
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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