TīmeklisA Laves phase, Fe2Ta, was utilized to obtain good elevated temperature properties in a carbon-free iron alloy containing 1 at. pct Ta and 7 at. pct Cr. Room temperature embrittlement resulting from the precipitation of the Laves phase at grain boundaries was overcome by spheroidizing the precipitate. This was accomplished by thermally … Tīmeklis2024. gada 1. apr. · The oxidation weight gain of the Fe(Al,Ta)/Fe2Ta(Al) eutectic composite at the same solidification rate is increased with temperature and Al2O3 is …
Magnetic and magnetocaloric properties of Fe2Ta thin films
Tīmeklis2024. gada 19. febr. · The coexistence of the positive and negative MCE is attributed to a paramagnetic–antiferromagnetic transition in the Fe2Ta system. XRD of a Fe 2 Ta … Tīmeklis2024. gada 30. nov. · To study the crystallographic orientation relationship (OR) between the two phases, the preferential orientation of the Fe–Al–Ta eutectic alloy at the different solidification rates was studied by Selected Area Electron Diffraction (SAED). Moreover, the lattice misfit between Fe2Ta(Al) Laves phase and Fe(Al,Ta) matrix … spirit i will always return
Magnetic and magnetocaloric properties of Fe2Ta thin films
TīmeklisA magnetocaloric effect (MCE) on rare-earth free Fe2Ta thin films is reported. The structural characterizations carried out using x-ray diffraction and transmission electron microscopy have ... Tīmeklis1997. gada 1. janv. · Three compositions based on the eutectic between the Fe (Al,Ta) phase and the Fe 2 Ta(Al) phase—the eutectic and two hypereutectic alloys—were directionally processed in levitation and Bridgman units. The influence of processing rate and method on the microstructure was determined. Tīmeklis2024. gada 1. febr. · A magnetocaloric effect (MCE) on rare-earth free Fe2Ta thin films is reported. The structural characterizations carried out using x-ray diffraction and transmission electron microscopy have indicated the formation of a Laves phase in the Fe2Ta film in a MgZn2 type crystal structure. Applying the Maxwell relation to the … spirit id saint peters university