X-ray imaging of metal foams during loading

NAISS 2023/6-133


NAISS Medium Storage

Principal Investigator:

Johan Hektor


Malmö universitet

Start Date:


End Date:


Primary Classification:

20506: Metallurgy and Metallic Materials




Metal foams manifest a unique combination of properties, including light weight, high specific stiffness, and excellent energy absorption. These properties make metal foams ideal for many applications in, e.g., the automotive and aerospace industries. The behavior of the foam cells is governed by microstructural features such as grain boundaries, pores, and cracks. The evolution of these features has, however, been largely neglected in prior studies of metal foams, which have instead focussed on the macroscopic structure of the foam. To shed light on the microstructural behavior in metal foams we are performing X-ray tomography and diffraction-based imaging of metallic foams subjected to thermal and mechanical loading. The data originates from both synchrotron sources (DESY, MAX IV, ESRF) and from lab-based X-ray systems. The objectives of the project include: * Development of novel imaging strategies capable of imaging samples that are larger than the X-ray beam. * Study the evolution of the microstructure of the metal foam by combining tomography and diffraction imaging. * Develop software tools for segmentation, registration, and analysis of such combined tomography and diffraction imaging datasets. * Combine and compare the experimental data with numerical modeling based e.g. on the finite element method.