This project targets an implementation and development of corrosion resistant high strength maraging steels for two applications, with two different strength levels, 1400 and 1900 MPa.
Macroscopically, this project aims to study the Process-Structure-Property (PSP) correlations of these novel high strength maraging steels with Ni-Ti-Al based intermetallic nanoprecipitation. These objectives will be realised via a combination of three waves of generic laboratory materials processing and two industrial trials.
Via the laboratory processing in combination with extensive dilatometry, the project aims at understanding the isolated effect of single intermetallic phases (mainly Ni3Ti and NiAl) and other elements, e.g. Mo and Cr on strength and other properties e.g. toughness and/or corrosion.
The two industrial trials target improving processability and robustness. A first aspect on this processability will look at the effect of recycling and scatter on properties. A second aspect will focus on the influence of shaping via forging into complex parts with different thermomechanical processing paths (effect of massivity).