Abstract

CAPILLA-GONZALEZ, Gustavo et al. Influence of the intermediate annealing process on the anisotropic and elastoplastic properties of AHSS sheets. Acta univ [online]. 2021, vol.31, e3034.  Epub Feb 16, 2022. ISSN 2007-9621.  https://doi.org/10.15174/au.2021.3034.

This work presents the experimental results of the influence of an annealing process on the anisotropic and elastoplastic properties of two types of advanced high strength steels (AHSS) sheets. The specimens were fabricated from Dual-Phase (DP) and a Transformation Induced Plasticity (TRIP) sheets with 0.78 mm and 1.08 mm thick, respectively. Experiments to determine the elastoplastic properties, anisotropy, and Young’s modulus variation were conducted. From the experimental results, it can be observed that the annealing process has a significative effect on the yield stress of the material and on the plateau appearance in the elastoplastic transition zone. Also, the anisotropy of the sheet is significatively reduced when temperatures of 400 °C y 800 °C are used in the process.

Keywords : Mechanical characterization; AHSS; anisotropy; plasticity.

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