3D printing technology creates a new type of titanium alloy

Science and Technology Daily, Beijing, May 31 (Reporter Zhang Jiaxin) - International research teams including the Royal Melbourne Institute of Technology in Australia and the University of Sydney have combined alloys and 3D printing processes to create a new titanium alloy that is strong but not brittle under tension. This breakthrough, published in the latest issue of Nature, brings hope for the development of a new class of more sustainable high-performance titanium alloys used in aerospace, biomedical, chemical engineering, space and energy technologies

Science and Technology Daily, Beijing, May 31 (Reporter Zhang Jiaxin) - International research teams including the Royal Melbourne Institute of Technology in Australia and the University of Sydney have combined alloys and 3D printing processes to create a new titanium alloy that is strong but not brittle under tension. This breakthrough, published in the latest issue of Nature, brings hope for the development of a new class of more sustainable high-performance titanium alloys used in aerospace, biomedical, chemical engineering, space and energy technologies.

The team used laser directed energy deposition to print their alloys from metal powders, a 3D printing process suitable for manufacturing large and complex parts. They combined the alloy design concept with 3D printing process design to determine a series of sturdy, ductile, and easy to print alloys.

The team stated that the attractive properties of these new alloys can be comparable to commercial alloys.

Professor Simon Linger, Vice President of the University of Sydney, stated that this study provides a new titanium alloy system with extensive and adjustable mechanical properties, high manufacturability, and huge emission reduction potential, as well as insights into material design for similar systems.

The researchers stated that the team incorporated the concept of circular economy into their design, creating hope for the production of new titanium alloys using industrial waste and low-grade materials. In addition, oxygen embrittlement is a significant metallurgical challenge not only for titanium, but also for other important metals such as zirconium, niobium, molybdenum, and their alloys. The new research may provide a template to alleviate these oxygen embrittlement issues through 3D printing and microstructure design.

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