Abstract
A non-isothermal model was developed including viscoplastic deformation, phase transformations and their interactions. The model was applied to a 12% chromium steel for temperatures between RT and 1600K. Austenite transformation, martensite transformation and the constitution of carbides were identified to affect the mechanical behaviour of the martensitic steel investigated. A generalized Johnson-Mehl-Avrami equation and the Koistinen-Marburger equation were used to describe these phase transformations. Viscoplastic deformations were modelled with an isothermal Chaboche-type model which was extended to non-isothermal conditions. Tensile, cyclic and relaxation test data were used to identify the model parameters.
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Mohrmann, R. (2003). A Non-Isothermal Model for Phase Transformations and the Mechanical Behaviour of a 12% Chromium Steel. In: Ståhle, P., Sundin, K.G. (eds) IUTAM Symposium on Field Analyses for Determination of Material Parameters — Experimental and Numerical Aspects. Solid Mechanics and its Applications, vol 109. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0109-0_16
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DOI: https://doi.org/10.1007/978-94-010-0109-0_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-1283-9
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