Scalmalloy was one on the two best tested
With metal 3D printing quickly become a strategic tool in industries such as automotive, defense, and healthcare, new material innovations arise on a rolling basis. Al alloys, in particular, are known for their high strength-to-weight ratios, hardenability, and excellent corrosion resistance, making them a prime choice for a wide variety of applications in the aerospace and motorsport sectors.
Technical results concerning 3D printing of Aluminium alloys
https://3dprintingindustry.com/news/u-s-research-delves-deeper-into-the-structural-integrity-of-3d-printed-aluminum-parts-196435/