Application and Introduction of Multi-Element Alloy Ingots.

Multi-Element Alloy Ingots or High-entropy alloys, HEAs are a type of alloy composed of multiple major elements, possessing unique physical and chemical properties, and thus having extensive application potential in various fields.

Application fields

Aerospace: The CrCoNi alloy, as a single-phase face-centered cubic (FCC) solid solution, exhibits excellent strength-compatibility combination, superior to all high-entropy alloys, and is considered a promising engineering alloy at low temperatures.

Material simulation and design: AlloyVAE is a physical information generation framework that can learn the complete conditional distribution of mechanical fields from the input of microstructure, providing a new paradigm for probabilistic modeling and designing heterogeneous materials. It can be used for reverse design to optimize component fields in order to achieve the desired mechanical response.

Industrial analysis: X-ray fluorescence spectroscopy is used to rapidly and accurately determine multiple elements in ferrosilicon alloys. This method is more efficient than traditional chemical methods, reducing the consumption of manpower and chemical reagents, and minimizing environmental pollution.

Preparation and Properties of Alloy Ingots

Preparation method: The CrCoNi alloy is prepared by arc melting and drop casting. This method is simpler than the previous studies that used cold deformation and recrystallization to prepare deformed alloys.

Microstructure: The as-cast CrCoNi alloy has anisotropic coarse columnar grains. After grain modification, it transforms into uniform and fine equiaxed grains, which significantly enhances the strength and toughness of the alloy.