Abstract
When a phase transformation occurs under stress and/or plastic straining, different phenomena are observed: the kinetics of the transformation and the morphology of the product phase are affected, and the thermomechanical behaviour of the material is modified (transformation plasticity). In order to explain these phenomena it has been shown that the internal stress state generated in the phases during the transformation has to be taken into account [1]. Thus, in order to get a better understanding of the coupling between the internal stresses and the transformation, micromechanical simulations by finite elements of the behaviour of the two phase material have been undertaken. In this paper we present two examples in which the micromechanical approach has been used: the morphological evolution of γ’ precipitates in single crystal nickel-based superalloys, and the microstructural evolution (plate orientation) and the development of transformation plasticity during martensitic transformation. We will focus only on several typical results; more detailed analysis can be found in references [2–6].
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References
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© 1996 Kluwer Academic Publishers
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Denis, S., Hazotte, A., Wen, Y.H., Gautier, E. (1996). Micromechanical Approach by Finite Elements to the Microstructural Evolutions and Mechanical Behaviour of two Phase Metallic Alloys. In: Pineau, A., Zaoui, A. (eds) IUTAM Symposium on Micromechanics of Plasticity and Damage of Multiphase Materials. Solid Mechanics and its Applications, vol 46. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1756-9_36
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DOI: https://doi.org/10.1007/978-94-009-1756-9_36
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7285-4
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