Abstract
Stainless steel 440C with high content of C and Cr is the desired candidate in many engineering component for bearing purpose due to the extremely high yield strength and resistance to corrosion and erosion. However, high content of C and Cr usually results in carbides precipitates during cooling process. In this work, deformation mechanisms and the interplay between martensitic matrix and carbides precipices are explored using crystal plasticity finite element method (CPFEM). Two deformation stages are clearly revealed correlated to the yielding of matrix and precipitate respectively. When the “softer” phase, matrix is approaching the yielding point, lattice strains of matrix cease increasing and experience the stable stage, while precipitates carry more stresses. When sample is further deformed and precipitates are yielding, lattice strains in matrix exhibit elastic relaxation.
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© 2015 TMS (The Minerals, Metals & Materials Society)
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Zheng, L., Yuan, W., Badarinarayan, H. (2015). Load Partitioning Mechanisms in Stainless Steel 440C by Crystal Plasticity Based Micromechanical Modeling Approach. In: Poole, W., et al. Proceedings of the 3rd World Congress on Integrated Computational Materials Engineering (ICME 2015). Springer, Cham. https://doi.org/10.1007/978-3-319-48170-8_15
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DOI: https://doi.org/10.1007/978-3-319-48170-8_15
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48612-3
Online ISBN: 978-3-319-48170-8
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