| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
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| Symposium
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Solid-State Transformations Under Complex Thermal Conditions
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| Presentation Title |
Additive Manufacturing of Beta Titanium Alloys: Influence of Thermo-Kinetics on Solid State Precipitation (Invited) |
| Author(s) |
M.S.K.K.Y Nartu, Tirthesh Ingale, Srinivas Aditya Mantri, Sriswaroop Dasari, Abhishek Sharma, Fan Sun, Frederic Prima, Narendra Dahotre, Rajarshi Banerjee |
| On-Site Speaker (Planned) |
Rajarshi Banerjee |
| Abstract Scope |
This talk will focus on AM processing of candidate beta Ti alloys, such as the strain-transformable Ti-10V-2Fe-3Al (or Ti-10-2-3) and high strength Ti-1Al-8V-5Fe (or Ti-1-8-5) (all in wt%), alloys. These alloys have been primarily processed by both laser powder bed fusion (LPBF) and directed energy deposition (DED). The focus is on the influence of the non-conventional thermo-kinetics of these AM processes on microstructural evolution, especially the solid-state precipitation of second phases (both omega and alpha) in these alloys, and the consequent influence on mechanical behaviour. Influence of thermo-kinetics on fine scale omega and alpha precipitation and strain transformability in AM processed Ti-10V-2Fe-3Al will be discussed, highlighting the differences between DED and LPBF processing. Similarly, depending on the process parameter dictated energy density in DED processed Ti-1Al-8V-5Fe, a homogeneous distribution of fine scale omega or alpha precipitates form within the beta grains, strongly influencing the mechanical behaviour |