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Mechanical behavior of a compositionally graded 300M steel

Abstract : In this work, a new approach for processing high strength functionally graded martensitic microstructures with improved fracture properties is presented. The functionally graded martensitic steels are composed of a hard phase at the core and a soft phase at the surface of the structure. The tensile response of the graded steels was analyzed in terms of the extended elasto-plastic transition and a high initial work hardening rate. The behavior of the graded material was modeled using a composite model in which the continuous carbon gradient is replaced with four layers of uniform carbon content.
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R. Roumina, J. D. Embury, Olivier Bouaziz, H. S. Zurob. Mechanical behavior of a compositionally graded 300M steel. Materials Science and Engineering: A, 2013, 578, pp.140-149. ⟨10.1016/j.msea.2013.04.006⟩. ⟨hal-01501663⟩



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