Microstructural damage behaviour of Al foams

Microheterogeneous materials such as metal foams exhibit a strong structure-property-relationship. The macroscopic material properties depend on the pore geometry and especially strut microstructure of struts grain structure. Since structure in differs from that corresponding bulk material, it is utmost importance to perform microtensile tests individual struts. Previous works aluminium outlined scattering this micromechanical properties. A possible reason for might be micro-porosity inclusions resulting manufacturing by investment casting. present contribution deals with ex situ In elucidate reasons determined tensile using high resolution X-ray computed tomography were used study microstructural failure mechanisms foam results further proven additional experiments struts, which analysed low prior testing allow more specimens hence better statistics. Micro-porosity primary found main differences