Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V

Rojas-Ulloa, Carlos; Bouffioux, Chantal; Jaramillo, Andr�s F.; Garc�a-Herrera, Claudio M.; Hussain, Tanvir; Duch�ne, Laurent; Riu, Guiomar; Josep Roa, Joan; Flores, Paulo; Marie Habraken, Anne; Tuninetti, V�ctor

Abstract

The nanoindentation‐induced mechanical deformation response is applied to identify the orthotropic elastic moduli using the Delafargue and Ulm method as well as to validate the asymmetric orthotropic CPB06 nonlinear plasticity model required in simulations of nonuniform macroscopic mechanical response of the Ti–6Al–4V alloy. Scanning electron microscope (SEM) technique allows to select the maximum penetration depth for the indentation in the deformed alpha phase and alpha–beta interphase, α and α/β, respectively. The apparent macromechanical response can be successfully derived from several residual imprints conducted at micro‐ and/or submicrometric length scale and distributed throughout samples of the investigated bulk alloy, as demonstrated by correlation with finite element simulations based on the orthotropic elastoplastic model. The accurate numerical response obtained validates the material model and the Delafargue and Ulm approach, opening a window for next generation identification methods of macromechanical plasticity models with hybrid experimental–numerical method based on instrumented indentation and the use of SEM technique.

Citation

Rojas-Ulloa, C., Bouffioux, C., Jaramillo, A. F., García-Herrera, C. M., Hussain, T., Duchêne, L., Riu, G., Josep Roa, J., Flores, P., Marie Habraken, A., & Tuninetti, V. (2021). Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V. Advanced Engineering Materials, 23(7), Article 2001341. https://doi.org/10.1002/adem.202001341

• Journal Article Type: Article
• Acceptance Date: Mar 16, 2021
• Online Publication Date: Apr 9, 2021
• Publication Date: 2021-07
• Deposit Date: Apr 19, 2021
• Publicly Available Date: Apr 10, 2022
• Journal: Advanced Engineering Materials
• Print ISSN: 1438-1656
• Electronic ISSN: 1527-2648
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 23
• Issue: 7
• Article Number: 2001341
• DOI: https://doi.org/10.1002/adem.202001341
• Public URL: https://nottingham-repository.worktribe.com/output/5482662
• Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/adem.202001341
• Additional Information: This is the peer reviewed version of the following article: Rojas-Ulloa, C., Bouffioux, C., Jaramillo, A.F., García-Herrera, C.M., Hussain, T., Duchêne, L., Riu, G., Josep Roa, J., Flores, P., Marie Habraken, A. and Tuninetti, V. (2021), Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V. Adv. Eng. Mater. 2001341., which has been published in final form at https://doi.org/10.1002/adem.202001341. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions