High-entropy Alloy (HEA) Sheet/Plate/Foil

The name "high-entropy" refers to the increase in entropy when a large number of elements are mixed, making it easier for the alloy to form stable solid solution structures rather than complex intermetallic compounds. The internal microstructure of high-entropy alloys is disordered and randomly arranged. They are achieved through rapid cooling (quenching) of high-temperature liquid metals. High-entropy alloys exhibit superior fracture resistance, tensile strength, corrosion resistance, and oxidation resistance compared to traditional alloys. 

HM is a reputable supplier of various high-quality High-entropy Alloy (HEA) products in the form of ingot, rod/bar, sheet/plate/foil, tensile specimen, custom parts, powder, etc.

High-entropy Alloy (HEA) Sheet/Plate/Foil Materials List

*The compositions and proportions can be customized according to specific requirements.

High-entropy Alloy Characteristics

• High strength and toughness: High-entropy alloys (HEAs) can simultaneously exhibit both high strength and toughness.
• Lightweight and high strength: HEAs can achieve lightweight properties with high strength, making them ideal for aerospace and structural applications where low density and high strength/hardness are critical.
• Excellent low-temperature toughness: HEAs do not experience the brittle-to-ductile transition seen in conventional alloys at low temperatures. They retain both strength and plasticity down to -200°C, making them suitable for polar and space materials.

• Good high-temperature stability: HEAs have high strength and resistance to softening at elevated temperatures. Upon aging heat treatment at high temperatures, their crystal structure transitions from stable BCC to FCC, with increased plastic strain (up to 27% at 1000°C).

• Radiation resistance and thermal shock resistance: HEAs show excellent radiation resistance, high-temperature resistance, and corrosion resistance, making them promising for nuclear structural materials. They have lower volume expansion and defect density compared to conventional alloys, ensuring stability in extreme environments.
• High hardness and wear resistance: HEAs exhibit excellent wear resistance. Studies show that replacing Cu with Mo in AlCoCrFeCuNi alloys significantly improves wear resistance. Some HEAs also outperform conventional wear-resistant steels by at least two times in terms of wear resistance.
• Excellent corrosion resistance: HEAs possess strong corrosion resistance, especially in marine environments. Their simple phase structure, along with possible amorphous, nanocrystalline phases and low free energy, enhances their durability against corrosion.

HEA vs Traditional Alloys: Strength and Toughness Comparison

High-entropy Alloy (HEA) Custom Parts Preparation Methods

Each of these production processes has advantages and disadvantages, and high-entropy alloy materials that meet specific requirements can be prepared at a reasonable production cost according to customer needs.

• Non-consumable vacuum arc melting
• Vacuum induction melting
• Water-cooled copper crucible levitation melting
• Powder metallurgy forming

High-entropy Alloy (HEA) Sheet/Plate/Foil Advantages

• Excellent mechanical properties
• Good corrosion resistance
• Good high-temperature resistance
• Good magnetic properties
• Good catalytic properties

High-entropy Alloy (HEA) Sheet/Plate/Foil Applications

• Aerospace field: Manufacturing aviation engines, turbine blades, high-temperature components, etc.
• Energy field: Manufacturing high-temperature burners, nuclear reactor components, etc.
• Mechanical tool field: Manufacturing hard tools, cutting steels, molds, etc.
• Electronic field: Manufacturing motors, transformers, electronic components, etc.
• Biomedical field: Manufacturing artificial bones, biological implants, medical devices, etc.

High-entropy Alloy (HEA) Sheet/Plate/Foil Packing 

High-entropy Alloy (HEA) Sheet/Plate/Foil is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.