|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||High Entropy Alloys IV
||Fabrication and Tensile Behavior of Bulk High Entropy Alloys Derived from Thin Film Combinatorial Approach
||Artashes Ter-Isahakyan, Azin Akbari, John T Balk
|On-Site Speaker (Planned)
Optimized compositions of OsRuWCoIr and CoCrFeMnNiCu high entropy alloys (HEAs) were selected from a newly developed, thin film combinatorial approach for identifying single-phase HEAs. Bulk samples of the alloys were prepared by arc melting of elemental materials. X-ray diffraction and scanning electron microscopy were used to characterize the microstructure of each alloy and corroborate the intended structure and composition from the thin film studies. Subsequent heat treatments were employed to achieve desirable microstructure (single-phase, equiaxed grains) for mechanical testing. Small-scale tensile specimens were cut from bulk alloys and the mechanical properties of each alloy, including elastic modulus and yield strength, were measured in tension and in compression. The tensile results from this study are an especially important aspect of HEA mechanical behavior and eventual use of HEAs in structural applications.
||Planned: A print-only volume