Authors:

Thomas Kairet (1), Godet Stéphane (2), Malet LoÏc (2), Hemberg Alex (3)

1- Sirris, Seraing, Belgium

2- ULB, Brussels, Belgium

3- Materia Nova Innovation Center, Mons, Belgium

Abstract:

The titanium coated powder has shown promising results for in-situ microalloying. Hot cracking of the 7075 alloy was completely inhibited and grain refinement is massive. This effect is visible with and without preheating of the build plate. Mapping of the alloying elements has shown that precipitation at the grain boundaries is important, hence these elements require solution treatment to be available for precipitation hardening. The best yield strength achieved in this work was 376MPa.

DOI:

https://doi.org/10.59499/EP246274677