A collaborative research team has developed a new class of titanium alloys that significantly improve strength and ductility, moving away from conventional brittle forms. Integrating advanced alloy designs with 3D-printing technology, this innovation, detailed in Nature, promises transformative applications in aerospace, biomedical, and energy sectors, while promoting sustainability by enabling the use of industrial waste and low-grade materials for production. The alloys consist of a mix of alpha and beta titanium phases, further enhanced by the inclusion of oxygen and iron—which, although previously seen as detrimental, were engineered to optimize strength without causing brittleness.
Led by RMIT University and the University of Sydney, in collaboration with Hong Kong Polytechnic University and Hexagon Manufacturing Intelligence, the team utilized Laser Directed Energy Deposition (L-DED) for precision manufacturing. The researchers believe their approach could set a benchmark in reducing the titanium industry’s high carbon footprint. The study indicates potential for broader applications, addressing challenges of oxygen embrittlement across various metals. Lead researcher Professor Ma Qian emphasized the synergy between material design and manufacturing processes, suggesting that this work could also influence future innovations in alloy development.
