| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
The Effect of Sample Size and Plastic Behavior on the Validity of Sub-scale Mechanical Testing of Titanium Alloys |
| Author(s) |
James D. Paramore, Laura C. Moody, Xinzhu Zheng, Ankit Srivastava, Brady G. Butler |
| On-Site Speaker (Planned) |
James D. Paramore |
| Abstract Scope |
Today’s technological landscape is increasingly driving the demand for reliable property data from small specimens. Sub-scale techniques are useful for testing near-net-shape components, rapidly producing large data sets for data-driven modeling and machine learning, and other applications. However, the mechanical behavior of most materials tends to depart significantly from the bulk as the testing scale is decreased. In this talk, the effect of thickness on the mechanical properties of mm-scale flat tensile bars is presented for two wrought alloys – commercially pure titanium (CP-Ti) and Ti-6Al-4V. While it might be expected that the more ductile CP-Ti would be less susceptible to sample size, the opposite effect was observed. The relationship between sample thickness and ductility was found to be more significant for CP-Ti by a substantial margin. The underlying mechanisms for this observed behavior and the implications for sub-scale testing of these and other titanium alloys will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, Additive Manufacturing |