Unlocking the potential of low-cost beta-titanium alloys by three-dimensional printing

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This project aims to reshape the design and fabrication of beta-titanium (beta-Ti) alloys that offer ultrahigh tensile strength and significant high cycle fatigue strength. It will exploit three-dimensional printing to enable the full use of Iron (Fe) and Chromium (Cr) as beta-stabilizers for Ti without segregation leading to beta-fleck defects. The outcomes of this project are expected to fundamentally change the design and fabrication of ultrahigh-strength beta-Ti alloys and to significantly extend the capabilities of metal three-dimensional printing, as well as advancing the knowledge base of both metal three-dimensional printing and Ti alloys. They further provide a strategic solution to the manufacture of other similar engineering alloys in the broad field of metals.