|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Refractory Metals 2016
||Micromechanical Testing of Multi Compositional Tungsten Thin Film Alloys
||Vladica Nikolic, Stefan Wurster, Alan Savan, Alfred Ludwig, Reinhard Pippan
|On-Site Speaker (Planned)
Magnetron sputter deposition was used to produce thin films of W – metal binary alloys with defined compositional gradients, on 200 μm thick cold – rolled tungsten substrate, yielding film thicknesses between 1-3 μm. Using this combinatorial materials library method, a wide range of alloys can be obtained on a single wafer and unique investigations of the exact influence of certain alloying elements on the mechanical properties can be performed. Micromechanical testing techniques, including nanoindentation and 3–point bending experiments, were performed in order to study the following alloys: W – Fe (0-6at %), W – Ti (0-12at %) and W – Ir (0-10at %). A SEM equipped with an EBSD detector was used to determine the microstructure, analyse the texture and to investigate the variation of the microstructure with respect to the alloying content and different heat treatments. The compositions of the regions of interest were determined using EDX spectroscopy.
||Planned: A print-only volume