Ultra-uniform, strong and ductile 3D printed titanium alloy through bifunctional alloy design

Coarse columnar grains and heterogeneously distributed phases commonly form in metallic alloys produced by three-dimensional (3D) printing and are often considered undesirable because they can impart non-uniform and inferior mechanical properties. We demonstrate a design strategy to unlock consistent and enhanced properties directly from 3D printing. Using Ti−5Al−5Mo−5V−3Cr as a model alloy, we show that adding molybdenum (Mo) nanoparticles promotes grain refinement during solidification and suppresses the formation of phase heterogeneities during solid-state thermal cycling. The microstructural change due to the bifunctional additive results in uniform mechanical properties and simultaneous enhancement of both strength and ductility. We demonstrate how this alloy can be modified by a single component to address unfavourable microstructures, providing a pathway to achieve desirable mechanical characteristics directly from 3D printing., These datasets were collected at The University of Queensland (Australia) and Chongqing University (China) from 2021 to 2023.
Details for each dataset are provided in the README file.
Datasets included:
1) Tensile engineering stress-strain data for Ti-5553 horizontal specimens

Number of Ti-5553 horizontal specimens
The engineering strain
The engineering stress

2) Tensile engineering stress-strain data for Ti-5553 vertical specimens

Number of Ti-5553 vertical specimens
The engineering strain
The engineering stress

3) Tensile engineering stress-strain data for Ti-5553+5Mo horizontal and vertical specimens

Number of Ti-5553 horizontal and vertical specimens
The engineering strain
The engineering stress

4) TEM-EDX line scanning

The distance of TEM-EDX line scan
The counts of element titanium (Ti) from the line scan
The counts of element molybdenum (Mo) from the line scan

5) DICTRA simulation of the composition profile of molybdenum (Mo) at the interface of a Mo particle and titanium..., , This README file was generated on 2023-12-19 by Jingqi Zhang.

**GENERAL INFORMATION**

1. Title of Dataset: Ultra-uniform, strong and ductile 3D printed titanium alloy through bifunctional alloy design

2. Author Information

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**A. Corresponding Author Contact Information**
* Name: Matthew Dargusch
* Institution: The University of Queensland
* Address: Level 6, Advanced Engineering Building (49), The University of Queensland, St Lucia, QLD 4072, Australia.
* Email: [e-mail]

**B. First Author Contact Information**
* Name: Jingqi Zhang
* Institution: The University of Queensland
* Address: Room 634, Level 6, Advanced Engineering Building (49), The University of Queensland, St Lucia, QLD 4072, Australia.
* Email: [e-mail]
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3. Date of data collection (single date, range, approximate date): 2021-2023

4. Geographic location of data collection: The University of Queensland (Australia) an...