About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Laser Powder Bed Fusion of Highly Dense Tantalum |
Author(s) |
Raden Gustinvil, Guru Dinda |
On-Site Speaker (Planned) |
Raden Gustinvil |
Abstract Scope |
Tantalum is a distinctive material in that it has the typical characteristics of a refractory metal: high melting point and excellent mechanical properties. However, unlike most of the other refractory elements, tantalum is ductile at room temperature and highly inert at elevated temperatures due to a stable oxide layer making it suitable for many more applications. Depositing this material with additive manufacturing, specifically laser powder bed fusion (L-PBF) can be used to overcome the issues that arise when fabricating tantalum components using traditional manufacturing. This work presents a systematic evaluation on the effect of processing parameters on mechanical and microstructural properties of additively manufactured tantalum using L-PBF. It is revealed that fully dense tantalum with excellent physical properties can be deposited without the need for post processing. As-deposited tantalum revealed an excellent combination of yield strength around 418 MPa, UTS of around 432 MPa, and tensile elongation of 12-15%. |