Skip to main content
European Commission logo print header

Dynamic thermomechanical deformation map of FCC microparticles using additive micromanufacturing and machine learning

Project description

3D-printed metallic microparticles that withstand extreme loading conditions

The EU-funded DyThM-FCC project will develop a novel additive micromanufacturing process to fabricate ordered high throughput metallic microparticles. Specifically, the additive manufacturing method that relies on localised electrodeposition will be used to print metallic microparticles of nickel, copper and cobalt with face centered cubic structure. These metallic microparticles will be thermally treated to control their internal microstructure and defect density. Subsequently, they will be mechanically tested under extreme strain rates of up to 1 000/s and temperatures from -150 to 600 degrees Celsius, for assessing their fundamental deformation mechanisms, along with their suitability and reliability in harsh applications.


The core aim of DyThM-FCC is to push the envelope of additive micro-manufacturing (AµM) and micromechanical testing under extreme conditions and identify a constitutive strengthening law by using machine learning (ML). A novel printing method, based on localized electrodeposition in a voxel-by-voxel manner, will be used to print metallic microparticles of Ni, Cu and Co. Subsequently, these microparticles will be subjected to thermal treatments to control the internal microstructure, i.e. change the dislocation content and grain size. These metallic microparticles will be tested under a combination of unprecedented strain rates (SR) up to 1000/s and temperatures from -150°C up to 600°C for assessing their suitability and reliability in extreme applications (e.g. sensors, where are subjected to high frequencies, or catalysis, where high temperatures can be expected). Depending on the applied SR and temperature several deformation mechanisms can contribute towards the deformation of face centered cubic (FCC) microcrystals as a function of the stacking fault energy (SFE). Ni, Cu and Co has been selected for this study as their SFE is very different, i.e. 128, 75 and 15 mJ/m2, respectivley. As such, a complete deformation map of pristine microscale pure FCC metals will be obtained as a function of temperature, SR, SFE and defect density, based on the stress-strain signatures, extracted thermal activation parameters such as activation volume/energy and microstructural characterization from scanning and transmission electron microscopy (SEM/TEM). Finally, all that information will be used to feed a ML strategy in which the parameters of a constitutive law will be extracted. DyThM-FCC will test the limits of cutting-edge technology in EU research arena by exceptional cooperation between complementing scientific fields.


Net EU contribution
€ 173 847,36
Max planck strasse 1
40237 Dusseldorf

See on map

Nordrhein-Westfalen Düsseldorf Düsseldorf, Kreisfreie Stadt
Activity type
Research Organisations
Other funding
€ 0,00