Processing and Characterization of High Entropy Alloys for Hydrogen Storage

HEA are a versatile alloy material that is generally composed of 5 or more elements in a single phase, alloyed in equiatomic or near-equiatomic proportions, also known as multi-principal component alloys (MPCA).

1. Synthesis of HEA

Develop and improve methods for preparing high-quality high entropy alloys (HEA) suitable for hydrogen storage applications. Initial plans are to use high-energy ball milling and laser cladding techniques to synthesize magnesium-containing HEA, and to continuously improve experimental protocols and parameters to enhance material properties and performance.

2. Microstructure and performance analysis

The microstructural, mechanical and hydrogen storage properties of the experimentally synthesized high entropy alloys (HEA) will be analyzed using testing techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM) and hydrogen absorption/release measurements (Sieverts method) to ensure comprehensive material characterization.

3. Optimization

A series of experimental processes and analyses will be conducted to determine the ideal alloy composition and experimental parameters; in addition, the maximum storage capacity and stability will be achieved through hydrogen storage performance testing and improvement. Finally, the preferred high entropy alloy (HEA) composition will be determined and optimized for efficient hydrogen storage.