Metal Additive Manufacturing Conference 2019

In this contribution, a method for screening and developing new materials by using L-PBF will be introduced. Up to now, the process of designing and developing new alloys is tedious and expensive. That can be significantly accelerated by the Rapid Alloy Development (RAD) approach. This approach describes a new and faster way of creating tailored alloys. New alloys can be fabricated and processed directly by dry-mixing of elementary powders. Thus, a large range of alloy compositions can be quickly produced, analyzed and evaluated. The Al-C-Co-Fe-Mn-Ni system is considered as the investigated material. First, promising alloy compositions are determined by using simulation tools and thermodynamic data bases. Second, different dry-mixed alloy compositions of AL-C-Co-Fe-Mn-Ni are qualified for the L-PBF process in order to screen the alloy. Finally, the various fabricated alloys are evaluated by AM processibility, microstructure (OM, SEM, EBSD, EDX) and mechanical properties.