Abstract
Laser Engineered Net Shaping (LENS) with laser powers of 300 W and 1 kW was used to synthesize the TiZrNbMoV high entropy alloys (HEA) from a blend of elemental powders. The morphology of the elemental powders was investigated using a scanning electron microscope (SEM) and an infrared particle size analyzer. The chemical composition and microstructure of the synthesized TiZrNbMoV alloys were investigated using an X-ray diffractometer (XRD) and SEM coupled with an energy-dispersive X-ray spectrometer (EDS). The hydrogen absorption and desorption properties of the synthesized TiZrNbMoV alloys were investigated using a Sieverts-type apparatus.After synthesis using a low laser power, the TiZrNbMoV alloy exhibited a two-phase dendritic matrix with some unmelted Mo particles and dendrites of a bcc solid solution surrounded by an orthorhombic NbTi4-type phase. The alloy that was deposited using a laser power of 1 kW and remelted three times possessed a multi-phase microstructure with a Mo-rich matrix containing Zr-rich precipitates and no dendritic segregation. The influence of the technological parameters employed during laser deposition on the microstructure and hydrogen storage properties of the synthesized TiZrNbMoV alloys will be presented and discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
