TY - GEN
T1 - Structure/Property (Constitutive and Dynamic Strength/Damage) Behavior of Additively Manufactured Tantalum
AU - Gray, George T.
AU - Livescu, Veronica
AU - Knapp, Cameron M
AU - Jones, David Robert
AU - Fensin, Saryu Jindal
AU - Chen, Shuh Rong
AU - Cady, Carl Mcelhinney
AU - Trujillo, Carl Patrick
AU - Martinez, Daniel Tito
PY - 2018/9/7
Y1 - 2018/9/7
N2 - For Certification and qualification of an engineering component generally involves meeting engineering and physics requirements tied to its functional requirements. In this paper, the results of a study quantifying the microstructure, mechanical behavior, and the dynamic damage evolution of Tantalum (Ta) fabricated using an EOS laser-powder-bed machine are presented. The microstructure and quasi-static mechanical behavior of the AM-Ta is detailed and compared/contrasted to wrought Ta. The dynamic damage evolution and failure response of the AM-Ta material, as well as wrought Ta, was probed using flyer-plate impact driven spallation experiments. The differences in the spallation response between the AM and wrought Ta were measured using in-situ velocimetry as well as post-mortem quantification of damage in "soft-recovered" samples. The damage evolution of the AM and wrought Ta were characterized using both optical metallography and electron-backscatter diffraction.
AB - For Certification and qualification of an engineering component generally involves meeting engineering and physics requirements tied to its functional requirements. In this paper, the results of a study quantifying the microstructure, mechanical behavior, and the dynamic damage evolution of Tantalum (Ta) fabricated using an EOS laser-powder-bed machine are presented. The microstructure and quasi-static mechanical behavior of the AM-Ta is detailed and compared/contrasted to wrought Ta. The dynamic damage evolution and failure response of the AM-Ta material, as well as wrought Ta, was probed using flyer-plate impact driven spallation experiments. The differences in the spallation response between the AM and wrought Ta were measured using in-situ velocimetry as well as post-mortem quantification of damage in "soft-recovered" samples. The damage evolution of the AM and wrought Ta were characterized using both optical metallography and electron-backscatter diffraction.
UR - https://www.scopus.com/pages/publications/85053692989
U2 - 10.1051/epjconf/201818303002
DO - 10.1051/epjconf/201818303002
M3 - Conference contribution
SN - 9782759890538
T3 - EPJ Web of Conferences
BT - DYMAT 2018 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
A2 - Cosculluela, Antonio
A2 - Cadoni, Ezio
A2 - Buzaud, Eric
A2 - Couque, Herve
PB - Unknown Publisher
T2 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT 2018
Y2 - 7 September 2018
ER -