E. Sert, L. Hitzler, B. Heine, M. Merkel, E. Werner, A. Öchsner
January 29, 2019
Recent studies show that there are major variations in the mechanical properties of additively manufactured precipitation-hardenable AlSi10Mg samples. These variations are caused by the varying precipitation hardening condition which, in turn, can be attributed to dwell times varying at elevated temperatures. Another influence on the microstructure can be revealed when looking at the different building orientations. AlSi10Mg samples were manufactured with different building orientations in order to investigate this in greater detail. They were subjected to a hardness measurement and microstructural analysis. Different heat treatment options were studied and the additively manufactured AlSi10Mg samples were subsequently subjected to a homogenizing heat treatment. New hardness measurements and microstructural examinations were performed in order to document the successful homogenization process.