High-temperature tribological behavior of direct-energy-deposited AlCoCrFeNi2.1 eutectic high-entropy alloy

Key Points

• Tribological behavior is strongly influenced by temperature, affecting wear resistance significantly.
• The study reports a reduction in the friction coefficient by up to 20% at elevated temperatures during testing.
• Analysis of direct-energy-deposited samples shows distinct eutectic microstructures enhancing performance.
• These findings support applications in extreme environments where materials face high temperatures and wear.