What Makes AlCoCrFeNiCu Alloy Powder a Versatile High-Entropy Material

As demands for multi-functional materials grow, high-entropy alloys (HEAs) are reshaping the field of advanced manufacturing. Among them, AlCoCrFeNiCu alloy powder stands out with its well-balanced mechanical, thermal, and corrosion-resistant properties. It is an ideal candidate for structural and surface applications requiring high strength and stability.

A Balanced High-Entropy Composition

AlCoCrFeNiCu belongs to the class of equiatomic HEAs, composed of aluminum, cobalt, chromium, iron, nickel, and copper. Its unique features include:

• Superior mechanical strength across a wide temperature range

• High hardness and wear resistance

• Stable FCC/BCC dual-phase structure enhancing ductility and strength balance

These characteristics make it suitable for aerospace, marine, and energy-related applications.

Excellent Corrosion and Oxidation Resistance

Due to its multi-elemental synergy, this HEA powder offers:

• Enhanced resistance to galvanic and pitting corrosion

• Thermal oxidation resistance up to 800–1000°C

• Long-term surface stability in saline, acidic, or high-humidity environments

This makes it highly valuable for marine parts, chemical plant components, and heat exchangers.

Optimized for Additive Manufacturing

HUAXIAO TECH provides gas-atomized AlCoCrFeNiCu powder with:

• High sphericity and low oxygen levels

• Narrow particle size distribution for smooth powder flow

• Compatibility with LPBF, EBM, DED, and MIM processes

Its stable phase formation also ensures predictable solidification behavior in layer-by-layer manufacturing.

Typical Applications

• Marine fasteners and shafts

• Surface coatings for turbine blades

• Corrosion-resistant structural parts

• Energy storage and conversion components

Key Benefits Summary

• High strength-to-weight ratio

• Dual-phase structure for ductility and toughness

• Excellent corrosion and oxidation performance

• Adaptability to various AM and coating technologies

Frequently Asked Questions (FAQ)

Q1: Is the AlCoCrFeNiCu alloy stable during heat cycles?
A1: Yes. The FCC/BCC phases provide good thermal stability and resistance to grain coarsening.

Q2: Can it be used for thermal spray or coating applications?
A2: Absolutely. The alloy performs well in HVOF, APS, and cold spray systems due to its wear and oxidation resistance.

Q3: What size distributions are available?
A3: Standard AM grade is 15–45 μm; coarse and fine grades are available upon request.

Conclusion

AlCoCrFeNiCu alloy powder provides a robust combination of mechanical strength, corrosion resistance, and manufacturing flexibility. As a pioneering high-entropy alloy, it enables reliable performance in extreme and corrosive environments.

To request technical data or bulk pricing, please contact HUAXIAO TECH for customized support.