6533b824fe1ef96bd128084c

RESEARCH PRODUCT

Continuous dynamic recrystallization phenomena modelling in friction stir welding of aluminium alloys: A neural-network-based approach

Gianluca BuffaLivan Fratini

subject

Materials scienceArtificial neural networkMechanical EngineeringMetallurgyMechanical engineeringRecrystallization (metallurgy)chemistry.chemical_elementStrain rateIndustrial and Manufacturing EngineeringFinite element methodchemistryAluminiumvisual_artAluminium alloyvisual_art.visual_art_mediumFriction stir weldingFriction welding

description

The current paper focuses on the continuous dynamic recrystallization phenomena (CDRX) occurring in friction stir welding processes of AA6082 T6 aluminium alloys. In particular, in order to predict the average grain size, a properly trained neural network is linked to the finite element method (FEM) model of the process. The utilized net, which takes as inputs the local values of strain, strain rate, and temperature, was trained starting from experimental data and numerical results. The obtained results show the capability of the artificial intelligence (AI) technique in conjunction with the FE tool to predict the final microstructure in the joint section.

https://doi.org/10.1243/09544054jem674